Last update:
Sat Jul 1 11:10:03 MDT 2023
Daniel Mazia and
Patricia J. Harris and
Thomas Bibring The Multiplicity of the Mitotic Centers
and the Time--Course of Their
Duplication and Separation . . . . . . . 1
R. E. Kane The Effect of Partial Protein Extraction
on the Structure of the Eggs of the Sea
Urchin, Arbacia punctulata . . . . . . . 21
Henry Finck Epoxy Resins in Electron Microscopy . . 27
A. J. de Lorenzo The Fine Structure of Synapses in the
Ciliary Ganglion of the Chick . . . . . 31
David S. Jackson and
John P. Bentley On the Significance of the Extractable
Collagens . . . . . . . . . . . . . . . 37
Fred Rapp and
Irving Gordon and
Richard F. Baker Observations of Measles Virus Infection
of Cultured Human Cells . . . . . . . . 43
Joseph C. Arcos and
George W. Griffith and
Richard W. Cunningham Fine Structural Alterations in Cell
Particles During Chemical Carcinogenesis 49
David A. Karnofsky and
Ross S. Basch Effects of 5-Fluorodeoxyuridine and
Related Halogenated Pyrimidines on the
Sand--Dollar Embryo . . . . . . . . . . 61
G. Yasuzumi Spermatogenesis in Animals as Revealed
by Electron Microscopy . . . . . . . . . 73
J. R. K. Savage and
G. J. Neary and
H. J. Evans The Rejoining Time of Chromatid Breaks
Induced by Gamma Radiation in
\bionameVicia faba Root Tips at 3$^\circ
$C . . . . . . . . . . . . . . . . . . . 79
M. F. Moody and
J. D. Robertson The Fine Structure of Some Retinal
Photoreceptors . . . . . . . . . . . . . 87
Clay G. Huff and
Alan C. Pipkin and
A. B. Weathersby and
Dinniemaud V. Jensen The Morphology and Behavior of Living
Exoerythrocytic Stages of Plasmodium
gallinaceum and P. fallax and Their Host
Cells . . . . . . . . . . . . . . . . . 93
J. B. Longley and
W. G. Banfield and
D. C. Brindley Structure of the Rete Mirabile in the
Kidney of the Rat as Seen with the
Electron Microscope . . . . . . . . . . 103
Humberto R. Maturana The Fine Anatomy of the Optic Nerve of
\bionameAnurans --- an Electron
Microscope Study . . . . . . . . . . . . 107
A. Peters The Structure of Myelin Sheaths in the
Central Nervous System of
\bionameXenopus laevis (Daudin) . . . . 121
Benigna Blondel and
Gilbert Turian Relation Between Basophilia and Fine
Structure of Cytoplasm in the Fungus
Allomyces macrogynus Em . . . . . . . . 127
Paul R. Gross and
Delbert E. Philpott and
Sylvan Nass Electron Microscopy of the Centrifuged
Sea Urchin Egg, with a Note on the
Structure of the Ground Cytoplasm . . . 135
Lawrence Herman An Electron Microscope Study of the
Salamander Thyroid during Hormonal
Stimulation . . . . . . . . . . . . . . 143
R. W. Merriam and
William E. Koch The Relative Concentration of Solids in
the Nucleolus, Nucleus, and Cytoplasm of
the Developing Nerve Cell of the Chick 151
A. M. Lawn Observations on the Fine Structure of
the Gastric Parietal Cell of the Rat . . 161
Keith R. Porter and
Raul D. Machado Studies on the Endoplasmic Reticulum . . 167
H. E. Karrer Cell Interconnections in Normal Human
Cervical Epithelium . . . . . . . . . . 181
O. Trujillo-Cenóz The Fine Structure of a Special Type of
Nerve Fiber Found in the Ganglia of
\bionameArmadillidium vulgare
(Crustacea--Isopoda) . . . . . . . . . . 185
Kiyoteru Tokuyasu and
Eichi Yamada The Fine Structure of the Retina. V.
Abnormal Retinal Rods and their
Morphogenesis . . . . . . . . . . . . . 187
William Bloom Preparation of a Selected Cell for
Electron Microscopy . . . . . . . . . . 191
Tadayo Hashimoto and
Philipp Gerhardt Monochromatic Ultraviolet Microscopy of
Microorganisms: Preliminary Observations
on Bacterial Spores . . . . . . . . . . 195
A. M. Lawn The Use of Potassium Permanganate as an
Electron--Dense Stain for Sections of
Tissue Embedded in Epoxy Resin . . . . . 197
H. G. Ehrlich Electron Microscopy of the Degeneration
of Fine Structure in Saintpaulia
ionantha Wendl. Pollen Walls . . . . . . 199
V. Defendi and
D. Kritchevsky A Histoautoradiographic Study of
Deoxyribonucleic Acid Synthesis in
Tissue Cultures of Chicken Embryo Liver
Cells Infected with RPL-12 Lymphomatosis
Virus . . . . . . . . . . . . . . . . . 201
Marshall W. Hartley and
W. H. McShan and
Hans Ris Isolation of Cytoplasmic Pituitary
Granules with Gonadotropic Activity . . 209
Virendra B. Kamat and
Donald F. Hoelzl Wallach and
John F. Crigler and
Aaron J. Ladman The Intracellular Localization of
Hormonal Activity in Transplantable
Thyrotropin--Secreting Pituitary Tumors
in Mice . . . . . . . . . . . . . . . . 219
Joe L. Griffin The Isolation, Characterization, and
Identification of the Crystalline
Inclusions of the Large Free--Living
Amebae . . . . . . . . . . . . . . . . . 227
C. L. Greenblatt and
R. A. Olson and
E. K. Engel Absorption Microscopy of Enzymatically
Treated Cell--Free Chloroplasts . . . . 235
Leonard Share and
Ronald W. Hansrote Permeability of Rat Liver Microsomes to
Sucrose and Carboxypoly-glucose in vitro 239
A. G. E. Pearse and
D. G. Scarpelli and
R. Hess A Cytochemical Study of the
Dehydrogenases of Mitochondria and
Mitochondrial Particulates by a
Monotetrazolium--Cobalt Chelation Method 243
Tadao Mitsui Application of the Electron Microscope
to the Cytochemical Peroxidase Reaction
in Salamander Leukocytes . . . . . . . . 251
Marvin M. Nachlas and
Benito Monis and
David Rosenblatt and
Arnold M. Seligman Improvement in the Histochemical
Localization of Leucine Aminopeptidase
with a New Substrate, L
-Leucyl-4-Methoxy-2-Naphthylamide . . . 261
I. Leslie and
Margaret Yarnell Succinic Dehydrogenase and Cytochrome
Oxidase Activities in Cell Cultures . . 265
Joshua L. Edwards and
Arthur L. Koch and
Pauline Youcis and
Herbert L. Freese and
Melville B. Laite and
J. Thomas Donalson Some Characteristics of DNA Synthesis
and the Mitotic Cycle in Ehrlich Ascites
Tumor Cells . . . . . . . . . . . . . . 273
T. Timothy Crocker and
S. R. Pelc Incorporation and Rate of Loss of
S$^{35}$-Methionine by Adult Rat Trachea
in Organ Cultures and in Living Animals 283
Paul B. Green Multinet Growth in the Cell Wall of
Nitella . . . . . . . . . . . . . . . . 289
Marilyn G. Farquhar and
George E. Palade Segregation of Ferritin in Glomerular
Protein Absorption Droplets . . . . . . 297
Tadayo Hashimoto and
Philipp Gerhardt and
S. F. Conti and
H. B. Naylor Studies on the Fine Structure of
Microorganisms . . . . . . . . . . . . . 305
William Zebrun and
Hilton H. Mollenhauer Electron Microscopic Observations on
Mitochondria of Rat Testes Fixed in
Potassium Permanganate . . . . . . . . . 311
Laura Hunter Colwin and
Arthur L. Colwin Formation of Sperm Entry Holes in the
Vitelline Membrane of Hydroides
hexagonus (Annelida) and Evidence of
their Lytic Origin . . . . . . . . . . . 315
Arthur L. Colwin and
Laura Hunter Colwin Egg Membrane Lytic Activity of Sperm
Extract and its Significance in Relation
to Sperm Entry in Hydroides hexagonus
(Annelida) . . . . . . . . . . . . . . . 321
Edward Essner An Electron Microscopic Study of
Erythrophagocytosis . . . . . . . . . . 329
Shimon Klein and
B. Ginzburg An electron microscopic investigation
into the effect of EDTA on plant cell
wall . . . . . . . . . . . . . . . . . . 335
Arthur Hess The Fine Structure of Degenerating Nerve
Fibers, their Sheaths, and their
Terminations in the Central Nerve Cord
of the Cockroach (\bionamePeriplaneta
americana) . . . . . . . . . . . . . . . 339
Wallace H. Clark Electron Microscope Studies of Nuclear
Extrusions in Pancreatic Acinar Cells of
the Rat . . . . . . . . . . . . . . . . 345
E. H. Mercer and
B. M. Shaffer Electron Microscopy of Solitary and
Aggregated Slime Mould Cells . . . . . . 353
H. E. Karrer Electron Microscopic Study of the
Phagocytosis Process in Lung . . . . . . 357
Juan D. Vial and
Héctor Orrego Electron Microscope Observations on the
Fine Structure of Parietal Cells . . . . 367
Pauline E. Holbert An Effective Method of Preparing
Sections of Bacillus polymyxa Sporangia
and Spores for Electron Microscopy . . . 373
Bernard R. Nebel and
Sylvanus A. Tyler and
Carol J. Murphy A Note on the Statistical Determination
of Shape of Chromatin Elements in Human
Spermatid and \bionameTradescantia
Microsporocyte . . . . . . . . . . . . . 377
P. Borst Preparation and Properties of
Mitochondria from Ehrlich Ascites Tumor
Cells . . . . . . . . . . . . . . . . . 381
S. J. Holt and
Eluned E. Hobbiger and
G. L. S. Pawan Preservation of Integrity of Rat Tissues
for Cytochemical Staining Purposes . . . 383
Elisabeth R. G. Mölbert and
Franz Duspiva and
Otto H. von Deimlimg The Demonstration of Alkaline
Phosphatase in the Electron Microscope 387
Sanford L. Palay On the Appearance of Absorbed Fat
Droplets in the Nuclear Envelope . . . . 391
P. Emmelot and
E. L. Benedetti Changes in the Fine Structure of Rat
Liver Cells Brought about by
Dimethylnitrosamine . . . . . . . . . . 393
Leslie L. Franchi Electron Microscopy of Oocyte--Follicle
Cell Relationships in the Rat Ovary . . 397
Par Roger Lavallard Étude au Microscope Électronique du
Reticulum Endoplasmique dans des Fibres
Musculaires du Crabe Bleu. (French)
[Electroscopic Study of Endoplasmic
Reticulum in Muscle Fibers of the Blue
Crab] . . . . . . . . . . . . . . . . . 399
Robert A. Resnik and
Theodor Wanko and
Mary Ann Gavin Observations on a Cytoplasmic Component
in Lens Fibers . . . . . . . . . . . . . 403
Eichi Yamada Collagen Fibrils within the Renal
Glomerulus . . . . . . . . . . . . . . . 407
Albert J. Dalton and
Robert F. Zeigel A Simplified Method of Staining Thin
Sections of Biological Material with
Lead Hydroxide for Electron Microscopy 409
Mitsugu Nishiura and
S. R. S. Rangan A Device for Embedding Tissue Culture
Preparations Grown on Coverslips . . . . 411
Steven L. Wissig The Anatomy of Secretion in the
Follicular Cells of the Thyroid Gland 419
Susumu Ito The Lamellar Systems of Cytoplasmic
Membranes in Dividing Spermatogenic
Cells of \bionameDrosophila virilis . . 433
Jay S. Roth Studies on the Function of Intracellular
Ribonucleases . . . . . . . . . . . . . 443
J. Herbert Taylor Asynchronous Duplication of Chromosomes
in Cultured Cells of Chinese Hamster . . 455
Edward L. Kuff and
Robert F. Zeigel Cytoplasmic Ribonucleoprotein Components
of the Novikoff Hepatoma . . . . . . . . 465
Audrey M. Glauert and
David A. Hopwood The Fine Structure of
\bionameStreptomyces coelicolor . . . . 479
Michael L. Watson The Extracellular Nature of Enamel in
the Rat . . . . . . . . . . . . . . . . 489
Arnaldo Lasansky and
Eduardo de Robertis Electron Microscopy of Retinal
Photoreceptors . . . . . . . . . . . . . 493
G. Yasuzumi and
Hiroaki Tanaka and
Osamu Tezuka Spermatogenesis in Animals as Revealed
by Electron Microscopy . . . . . . . . . 499
David Brandes and
Adolfo Portela The Fine Structure of the Epithelial
Cells of the Mouse Prostate . . . . . . 505
David Brandes and
Adolfo Portela The Fine Structure of the Epithelial
Cells of the Mouse Prostate . . . . . . 511
David P. Bloch and
Howard Y. C. Hew Schedule of Spermatogenesis in the
Pulmonate Snail Helix aspersa, with
Special Reference to Histone Transition 515
M. K. Keech Electron Microscope Study of the Normal
Rat Aorta . . . . . . . . . . . . . . . 533
M. K. Keech Electron Microscope Study of the
Lathyritic Rat Aorta . . . . . . . . . . 539
Y. Moulé and
C. Rouiller and
J. Chauveau A Biochemical and Morphological Study of
Rat Liver Microsomes . . . . . . . . . . 547
Charles R. Capers Multinucleation of Skeletal Muscle in
vitro . . . . . . . . . . . . . . . . . 559
D. Louise Odor Electron Microscopic Studies on Ovarian
Oocytes and Unfertilized Tubal Ova in
the Rat . . . . . . . . . . . . . . . . 567
Kiyoshi Hama The Fine Structure of the Desmosomes in
Frog Mesothelium . . . . . . . . . . . . 575
Von W. Sandritter and
H. G. Schiemer and
H. Kraus and
Und U. Dörrien Das Wachstum von Einzelzellen in der
Gewebekultur. Interferenzmikroskopische
Untersuchungen an HeLa--Zellen. (German)
[The growth of single cells in tissue
culture. Interference Microscopy
investigation of HeLa Cells] . . . . . . 579
A. J. Shatkin A Chlorophyll--Containing Cell Fraction
from the Blue--Green Alga, Anabaena
variabilis . . . . . . . . . . . . . . . 583
Helmut Pauly and
Lester Packer and
H. P. Schwan Electrical Properties of Mitochondrial
Membranes . . . . . . . . . . . . . . . 589
Helmut Pauly and
Lester Packer The Relationship of Internal Conductance
and Membrane Capacity to Mitochondrial
Volume . . . . . . . . . . . . . . . . . 603
Cecil E. Hall Measurement of Globular Protein
Molecules by Electron Microscopy . . . . 613
Philip Siekevitz and
George E. Palade A Cytochemical Study on the Pancreas of
the Guinea Pig . . . . . . . . . . . . . 619
Philip Siekevitz and
George E. Palade A Cytochemical Study on the Pancreas of
the Guinea Pig . . . . . . . . . . . . . 631
Burton Goldberg and
Howard Green Immune Cytolysis . . . . . . . . . . . . 645
Nancy L. R. Bucher and
Daniel Mazia Deoxyribonucleic Acid Synthesis in
Relation to Duplication of Centers in
Dividing Eggs of the Sea Urchin,
Strongylocentrotus purpuratus . . . . . 651
Joseph G. Gall and
William W. Johnson Is there ``Metabolic'' DNA in the Mouse
Seminal Vesicle? . . . . . . . . . . . . 657
M. R. Loran and
T. L. Althausen Cellular Proliferation of Intestinal
Epithelia in the Rat Two Months after
Partial Resection of the Ileum . . . . . 667
L. Weiss and
J. A. Armstrong Structural Changes in Mammalian Cells
Associated with Cooling to -79$^\circ $C 673
Arnaldo Lasansky and
Eduardo De Robertis Submicroscopic Analysis of the Genetic
Distrophy of Visual Cells in C3H Mice 679
Richard P. Bunge and
Mary Bartlett Bunge and
Hans Ris Electron Microscopic Study of
Demyelination in an Experimentally
Induced Lesion in Adult Cat Spinal Cord 685
I. R. Gibbons and
A. V. Grimstone On Flagellar Structure in Certain
Flagellates . . . . . . . . . . . . . . 697
Kiyoshi Hama The Fine Structure of Some Blood Vessels
of the Earthworm, Eisenia foetida . . . 717
Neil C. R. Merrillees The Fine Structure of Muscle Spindles in
the Lumbrical Muscles of the Rat . . . . 725
Erling Johansen and
Harold F. Parks Electron Microscopic Observations on the
Three--Dimensional Morphology of Apatite
Crystallites of Human Dentine and Bone' 743
Etienne de Harven and
Charlotte Friend Further Electron Microscope Studies of a
Mouse Leukemia Induced by Cell--Free
Filtrates . . . . . . . . . . . . . . . 747
Allan F. Howatson and
June D. Almeida An Electron Microscope Study of Polyoma
Virus in Hamster Kidney . . . . . . . . 753
Betty Geren Uzman and
Gloria M. Villegas A Comparison of Nodes of Ranvier in
Sciatic Nerves with Node--Like
Structures in Optic Nerves of the Mouse 761
R. E. Burge and
N. R. Silvester The Measurement of Mass, Thickness, and
Density in the Electron Microscope . . . 1
J. B. Finean Electron Microscope and X-Ray
Diffraction Studies of the Effects of
Dehydration on the Structure of Nerve
Myelin . . . . . . . . . . . . . . . . . 13
J. B. Finean Electron Microscope and X-Ray
Diffraction Studies of the Effects of
Dehydration on the Structure of Nerve
Myelin . . . . . . . . . . . . . . . . . 31
Jan-Erik Edström Extraction, Hydrolysis, and
Electrophoretic Analysis of Ribonucleic
Acid from Microscopic Tissue Units
(Microphoresis) . . . . . . . . . . . . 39
Jan-Erik Edström Composition of Ribonucleic Acid from
Various Parts of Spider Oocytes . . . . 47
Charles N. Gamble and
David Glick Studies in Histochemistry . . . . . . . 53
G. Adolph Ackerman Histochemical Demonstration of
Dehydrogenase Activity in the Cells of
Normal Human Blood and Bone Marrow . . . 61
David P. Bloch and
Howard Y. C. Hew Changes in nuclear histones during
fertilization, and early embryonic
development in the pulmonate snail,
\bionameHelix aspersa . . . . . . . . . 69
Russell J. Barrnett and
Eric G. Ball Metabolic and Ultrastructural Changes
Induced in Adipose Tissue by Insulin . . 83
David S. Smith and
Virginia C. Littau Cellular specialization in the excretory
epithelia of an insect,
\bionameMacrosteles fascifrons stål
(homoptera) . . . . . . . . . . . . . . 103
H. E. Karrer The Striated Musculature of Blood
Vessels . . . . . . . . . . . . . . . . 135
Huntington Sheldon and
Robert A. Robinson Studies on Cartilage . . . . . . . . . . 151
P. Drochmans Electron Microscope Studies of Epidermal
Melanocytes, and the Fine Structure of
Melanin Granules . . . . . . . . . . . . 165
Keith R. Porter and
Eichi Yamada Studies on the Endoplasmic Reticulum . . 181
L. E. Roth and
S. W. Obetz and
E. W. Daniels Electron Microscopic Studies of Mitosis
in Amebae . . . . . . . . . . . . . . . 207
Irene Manton On a reticular derivative from Golgi
bodies in the meristem of
\bionameAnthoceros . . . . . . . . . . . 221
W. Gordon Whaley and
Hilton H. Mollenhauer and
James H. Leech Some Observations on the Nuclear
Envelope . . . . . . . . . . . . . . . . 233
Jerome M. Aronson and
R. D. Preston The microfibrillar structure of the cell
walls of the filamentous fungus,
\bionameAllomyces . . . . . . . . . . . 247
David A. Hopwood and
Audrey M. Glauert Observations on the chromatinic bodies
of \bionameStreptomyces coelicolor . . . 257
David A. Hopwood and
Audrey M. Glauert The fine structure of
\bionameStreptomyces coelicolor . . . . 267
Mikko Niemi and
A. G. E. Pearse The Relationship of the Mitochondria to
Egg White Absorption Droplets in Rat
Kidney . . . . . . . . . . . . . . . . . 279
E. G. Gray Regular Organisation of Material in
Certain Mitochondria of Neuroglia of
Lizard Brain . . . . . . . . . . . . . . 282
Tosisuke Hiraoka Electrophoretic Analysis of Colored
Product Produced by Schiff-Formaldehyde
Reaction . . . . . . . . . . . . . . . . 286
Cicily Chapman-Andresen and
Howard Holtzer The uptake of fluorescent albumin by
pinocytosis in \bionameAmoeba proteus 288
O. Núñez-Montiel and
J. Weibel Electron Microscope Study of Echo 19
Virus Infection in Monkey Kidney Cells 291
Philip M. Grimley and
George A. Edwards The Ultrastructure of Cardiac Desmosomes
in the Toad and Their Relationship to
the Intercalated Disc . . . . . . . . . 305
Morris J. Karnovsky and
Gerald D. Fasman A histochemical method for
distinguishing between side-chain and
terminal ($ \alpha $-acylamido) carboxyl
groups of proteins . . . . . . . . . . . 319
Donald E. Wimber and
Henry Quastler and
Otto L. Stein and
Doris R. Wimber Analysis of Tritium Incorporation into
Individual Cells by Autoradiography of
Squash Preparations . . . . . . . . . . 327
Irwin R. Konigsberg and
Norma McElvain and
Martha Tootle and
Heinz Herrmann The Dissociability of Deoxyribonucleic
Acid Synthesis from the Development of
Multinuclearity of Muscle Cells in
Culture . . . . . . . . . . . . . . . . 333
Harold P. Klinger and
Hans G. Schwarzacher The Sex Chromatin and Heterochromatic
Bodies in Human Diploid and Polyploid
Nuclei . . . . . . . . . . . . . . . . . 345
Rachel McMaster-Kaye The Metabolic Characteristics of
Nucleolar, Chromosomal, and Cytoplasmic
Ribonucleic Acid of \bionameDrosophila
Salivary Glands . . . . . . . . . . . . 365
Robert D. Allen The Consistency of Ameba Cytoplasm and
Its Bearing on the Mechanism of Ameboid
Movement . . . . . . . . . . . . . . . . 379
Antoinette Ryter Étude au microscope électronique des
transformations nucléaires de \bionameE.
coli K12S et K12S$ (\lambda_{26}) $
apr\`es irradiation aux rayons
ultraviolets et aux rayons X . . . . . . 399
David M. Neville The Isolation of a Cell Membrane
Fraction from Rat Liver . . . . . . . . 413
George G. Rose and
C. M. Pomerat Phase Contrast Observations of the
Endoplasmic Reticulum in Living Tissue
Cultures . . . . . . . . . . . . . . . . 423
A. Peters The Formation and Structure of Myelin
Sheaths in the Central Nervous System 431
David S. Smith Innervation of the Fibrillar Flight
Muscle of an Insect: Tenebrio Molitor
(Coleoptera) . . . . . . . . . . . . . . 447
Nikolajs Cauna and
Leonard L. Ross The fine structure of Meissner's touch
corpuscles of human fingers . . . . . . 467
Richard M. Eakin and
Jane A. Westfall Further Observations on the Fine
Structure of the Parietal Eye of Lizards 483
Peter Albersheim and
K. Mühlethaler and
A. Frey-Wyssling Stained Pectin As Seen in the Electron
Microscope . . . . . . . . . . . . . . . 501
Philip C. Fitz-James Participation of the Cytoplasmic
Membrane in the Growth and Spore
Formation of Bacilli . . . . . . . . . . 507
Shimon Klein The Effect of Low Temperature on the
Development of the Lamellar System in
Chloroplasts . . . . . . . . . . . . . . 529
H. R. Munden A Set of Collets for Manipulating the
Specimen Holder of the Siemens Electron
Microscope . . . . . . . . . . . . . . . 541
M. Steinert Mitochondria Associated with the
Kinetonucleus of Trypanosoma Mega . . . 542
R. Hess and
F. M. Dietrich Cytochemical Localization of
Dehydrogenase and Diaphorase Activity in
Bacillus Megaterium . . . . . . . . . . 546
R. C. King and
Gretchen J. Falk In Vitro Incorporation of Uridine-H$^3$
into Developing Fruit Fly Oocytes . . . 550
P. Drochmans Mise En ÉVidence Du GlycogÉNe Dans La
Cellule HÉPatique Par Microscopie
ÉLectronique . . . . . . . . . . . . . . 553
S. Wischnitzer Observations on the Annulate Lamellae of
Immature Amphibian Oocytes . . . . . . . 558
M. Steinert and
A. B. Novikoff The Existence of a Cytostome and the
Occurrence of Pinocytosis in the
Trypanosome, Trypanosoma Mega . . . . . 563
Jean Paul Revel and
Leonard Napolitano and
Don W. Fawcett Identification of Glycogen in Electron
Micrographs of Thin Tissue Sections . . 575
Irving Finger and
Michael Kaback and
Philip Kittner and
Carol Heller Immunological Studies of Isolated
Particulates of Paramecium Aurelia . . . 591
Hikoichi Sakai Studies on Sulfhydryl Groups During Cell
Division of Sea Urchin Egg . . . . . . . 603
Hikoichi Sakai Studies on Sulfhydryl Groups During Cell
Division of Sea Urchin Egg . . . . . . . 609
Satimaru Seno and
K\=oy\=o Yoshizawa Electron Microscope Observations on
Frozen-Dried Cells . . . . . . . . . . . 617
Stanley Bullivant The Staining of Thin Sections of Mouse
Pancreas Prepared by the FernÁNdez--MorÁN
Helium Ii Freeze-Substitution Method . . 639
Norwin H. Becker and
Sidney Goldfischer and
Woo-Yung Shin and
Alex B. Novikoff The Localization of Enzyme Activities in
the Rat Brain . . . . . . . . . . . . . 649
Jay S. Roth Studies on the Function of Intracellular
Ribonucleases . . . . . . . . . . . . . 665
Philip W. Brandt and
George D. Pappas An Electron Microscopic Study of
Pinocytosis in Ameba . . . . . . . . . . 675
Fritz Miller Hemoglobin Absorption by the Cells of
the Proximal Convoluted Tubule in Mouse
Kidney . . . . . . . . . . . . . . . . . 689
Gabriel C. Godman and
Keith R. Porter Chondrogenesis, Studied with the
Electron Microscope . . . . . . . . . . 719
Hilton H. Mollenhauer and
William Zebrun Permanganate Fixation of the Golgi
Complex and Other Cytoplasmic Structures
of Mammalian Testes . . . . . . . . . . 761
Marcel Bessis and
Georges Nomarski Irradiation Ultra-Violette Des Organites
Cellulaires Avec Observation Continue En
Contraste De Phase . . . . . . . . . . . 777
H. W. Beams and
T. N. Tahmisian and
Everett Anderson and
Rosemarie Devine Studies on the Fine Structure of
Ultracentrifuged Spinal Ganglion Cells 793
David A. Hopwood and
Audrey M. Glauert The Fine Structure of the Nuclear
Material of a Blue-Green Alga, Anabaena
Cylindrica Lemm . . . . . . . . . . . . 813
Erland Nelson and
Hermann Hager and
Ernest Kovács Intracellular Virus Crystals in the
Central Nervous System of Mice Following
Rodent Polioencephalitis (Mm Strain)
Infection . . . . . . . . . . . . . . . 825
A. F. Howatson and
J. D. Almeida Observations on the Fine Structure of
Polyoma Virus . . . . . . . . . . . . . 828
D. F. Parsons and
E. B. Darden A Technique for the Simultaneous
Dirt-Free Lead Staining of Several
Electron Microscope Grids of Thin
Sections . . . . . . . . . . . . . . . . 834
Robert Hadek and
Hewson Swift A Crystalloid Inclusion in the Rabbit
Blastocyst . . . . . . . . . . . . . . . 836
Albert W. Sedar Electron Microscopy of the Oxyntic Cell
in the Gastric Glands of the Bullfrog
(\bionameRana Catesbiana) . . . . . . . 1
Ronald W. Estabrook and
Andrew Holowinsky Studies on the Content and Organization
of the Respiratory Enzymes of
Mitochondria . . . . . . . . . . . . . . 19
T. N. Tahmisian and
R. L. Devine The Influence of X-Rays on Organelle
Induction and Differentiation in
Grasshopper Spermatogenesis . . . . . . 29
Alex B. Novikoff and
Woo-Yung Shin and
Joan Drucker Mitochondrial Localization of Oxidative
Enzymes: Staining Results with Two
Tetrazolium Salts . . . . . . . . . . . 47
Hans Ris and
R. N. Singh Electron Microscope Studies on
Blue-Green Algae . . . . . . . . . . . . 63
Ellen Borenfreund and
Aaron Bendich A Study of the Penetration of Mammalian
Cells by Deoxyribonucleic Acids . . . . 81
Jane Couffer-Kaltenbach and
Peter Perlmann Antigens in Eggs and Developmental
Stages of the Sea Urchin . . . . . . . . 93
David D. Sabatini and
Eduardo D. P. De Robertis Ultrastructural Zonation of Adrenocortex
in the Rat . . . . . . . . . . . . . . . 105
Vittorio Marinozzi Silver Impregnation of Ultrathin
Sections for Electron Microscopy . . . . 121
Klaus G. Bensch and
Donald W. King and
Edward L. Socolow The Source of Lipid Accumulation in L
Cells . . . . . . . . . . . . . . . . . 135
Cosmo G. Mackenzie and
Julia B. Mackenzie and
Paul Beck The effect of pH on growth, protein
synthesis, and lipid-rich particles of
cultured mammalian cells . . . . . . . . 141
Fritz Miller Lipoprotein Granules in the Cortical
Collecting Tubules of Mouse Kidney . . . 157
Woutera Van Iterson and
C. F. Robinow Observations with the Electron
Microscope on the Fine Structure of the
Nuclei of Two Spherical Bacteria . . . . 171
Woutera Van Iterson Some Features of a Remarkable Organelle
in \bionameBacillus Subtilis . . . . . . 183
M. K. Keech The Formation of Fibrils from Collagen
Solutions . . . . . . . . . . . . . . . 193
J. E. Shapiro and
B. R. Hershenov and
G. S. Tulloch The Fine Structure of
\bionameHaematol\oechus Spermatozoan
Tail . . . . . . . . . . . . . . . . . . 211
R. F. Baker and
H. E. Pearson New Embedding Method for Cell
Suspensions . . . . . . . . . . . . . . 217
R. P. van Tubergen The Use of Radioautography and Electron
Microscopy for the Localization of
Tritium Label in Bacteria . . . . . . . 219
Montrose J. Moses Spermiogenesis in the Crayfish
(\bionameProcambarus Clarkii) . . . . . 222
E. De Robertis and
A. Pellegrino De Iraldi and
Georgina Rodriguez and
C. J. Gomez On the Isolation of Nerve Endings and
Synaptic Vesicles . . . . . . . . . . . 229
A. Policard and
A. Collet and
H. Daniel-Moussard and
S. Pregermain Deposition of Silica in Mitochondria: an
Electron Microscopic Study . . . . . . . 236
Richard A. Ellis and
William Montagna Electron Microscopy of the Duct, and
Especially the ``Cuticular Border'' of
the Eccrine Sweat Glands in Macaca
Mulatta . . . . . . . . . . . . . . . . 238
Gerald R. Seaman Acid Phosphatase Activity Associated
with Phagotrophy in the Ciliate,
\bionameTetrahymena . . . . . . . . . . 243
D. Danon and
Y. Marikovsky and
U. Z. Littauer A Comparative Electron Microscopical
Study of RNA from Different Sources . . 253
Goetz W. Richter Intranuclear Aggregates of Ferritin in
Liver Cells of Mice Treated with
Saccharated Iron Oxide . . . . . . . . . 263
Herbert Stern Periodic Induction of Deoxyribonuclease
Activity in Relation to the Mitotic
Cycle . . . . . . . . . . . . . . . . . 271
Yasuo Hotta and
Herbert Stern Deamination of Deoxycytidine and
$5$-Methyldeoxycytidine in Developing
Anthers of Lilium Longiflorum (Var.
Croft) . . . . . . . . . . . . . . . . . 279
Christopher L. Hannay Fowler's Bacillus and Its Parasporal
Body . . . . . . . . . . . . . . . . . . 285
Federico Gonzales and
Morris J. Karnovsky Electron Microscopy of Osteoclasts in
Healing Fractures of Rat Bone . . . . . 299
L. E. Roth and
E. W. Daniels Infective Organisms in the Cytoplasm of
Amoeba Proteus . . . . . . . . . . . . . 317
Richard J. Stenger and
David Spiro The Ultrastructure of Mammalian Cardiac
Muscle . . . . . . . . . . . . . . . . . 325
D. F. Parsons and
E. B. Darden and
D. L. Lindsley and
Guthrie T. Pratt Electron Microscopy of Plasma-Cell
Tumors of the Mouse . . . . . . . . . . 353
D. F. Parsons and
M. A. Bender and
E. B. Darden and
Guthrie T. Pratt and
D. L. Lindsley Electron Microscopy of Plasma-Cell
Tumors of the Mouse . . . . . . . . . . 369
Björn A. Afzelius The Fine Structure of the Cilia from
Ctenophore Swimming-Plates . . . . . . . 383
Charles Grégoire Structure of the Conchiolin Cases of the
Prisms in Mytilus Edulis Linne . . . . . 395
Robert D. Campo and
Dominic D. Dziewiatkowski A Consideration of the Permeability of
Cartilage to Inorganic Sulfate . . . . . 401
John H. Luft Improvements in Epoxy Resin Embedding
Methods . . . . . . . . . . . . . . . . 409
Donald G. Walker and
Arnold M. Seligman Formalin Fixation in the Cytochemical
Demonstration of Succinic Dehydrogenase
of Mitochondria . . . . . . . . . . . . 415
Richard M. Condie and
A. Ervin Howell and
Robert A. Good Studies on the Problem of Preservation
of Myelin Sheath Ultrastructure:
Evaluation of Fixation, Dehydration, and
Embedding Techniques . . . . . . . . . . 429
John Woodard and
Ellen Rasch and
Hewson Swift Nucleic Acid and Protein Metabolism
During the Mitotic Cycle in
\bionameVicia Faba . . . . . . . . . . . 445
George G. Rose The Golgi Complex in Living Osteoblasts 463
S. R. Wellings and
K. B. Deome Milk protein droplet formation in the
Golgi apparatus of the C3H/Crgl mouse
mammary epithelial cells . . . . . . . . 479
R. Bruce Nicklas The Relationship Between DNA Content and
Alternative Meiotic Patterns in Certain
Discocephalinids (Pentatomidae;
Heteroptera) . . . . . . . . . . . . . . 486
E. J. Batham Infoldings of Nerve Fibre Membranes in
the Opisthobranch Mollusc
\bionameAplysia Californica . . . . . . 490
Alexander Mauro Satellite Cell of Skeletal Muscle Fibers 493
Kenji Takeya and
Ryoichi Mori and
Tooru Tokunaga and
Masaatsu Koike and
Kazuhito Hisatsune Further Studies on the Paired Fibrous
Structure of Mycobacterial Cell Wall . . 496
E. J. Harris The Site of Swelling in Muscle . . . . . 502
Jesse E. Sisken and
Riojun Kinosita Timing of DNA Synthesis in the Mitotic
Cycle in Vitro . . . . . . . . . . . . . 509
S. J. Singer and
Anita F. Schick The Properties of Specific Stains for
Electron Microscopy Prepared by the
Conjugation of Antibody Molecules with
Ferritin . . . . . . . . . . . . . . . . 519
Lucien G. Caro Localization of Macromolecules in
\bionameEscherichia coli . . . . . . . . 539
Lucien G. Caro and
Frederick Forro Localization of Macromolecules in
\bionameEscherichia coli . . . . . . . . 555
M. T. M. Rizki Intracellular Localization of Kynurenine
in the Fatbody of \bionameDrosophila . . 567
S. Ralph Himmelhoch and
Morris J. Karnovsky The Histochemical Demonstration of
Glyceraldehyde-$3$-Phosphate
Dehydrogenase Activity . . . . . . . . . 573
D. A. Cameron The Fine Structure of Osteoblasts in the
Metaphysis of the Tibia of the Young Rat 583
Masaatsu Koike and
Kenji Takeya Fine Structures of Intracytoplasmic
Organelles of Mycobacteria . . . . . . . 597
M. Zalokar Electron Microscopy of Centrifuged
Hyphae of Neurospora . . . . . . . . . . 609
Jan-Erik Edström and
Jerzy Kawiak Microchemical Deoxyribonucleic Acid
Determination in Individual Cells . . . 619
Abraham M. Breslau and
Thomas J. Hensley and
John O. Erickson Electron Microscopy of Cultured
Spherules of Coccidioides Immitis . . . 627
J. A. Chapman Morphological and Chemical Studies of
Collagen Formation . . . . . . . . . . . 639
A. Kent Christensen and
Don W. Fawcett The Normal Fine Structure of Opossum
Testicular Interstitial Cells . . . . . 653
Howard G. Davies Structure in Nucleated Erythrocytes . . 671
Eberhards Vitols and
R. J. North and
Anthony W. Linnane Studies on the Oxidative Metabolism of
\bionameSaccharomyces Cerevisiae . . . . 689
Eberhards Vitols and
Anthony W. Linnane Studies on the Oxidative Metabolism of
\bionameSaccharomyces Cerevisiae . . . . 701
Bruce K. Wetzel Sodium Permanganate Fixation for
Electron Microscopy . . . . . . . . . . 711
M. T. Jansen and
I. Molenaar Ultraviolet Microscopy of Pancreatic
Acinar Nuclei Fixed in Potassium
Permanganate . . . . . . . . . . . . . . 716
J. J. Wolken and
P. D. Gupta Photoreceptor Structures. the Retinal
Cells of the Cockroach Eye . . . . . . . 720
Barbara G. Barnes and
T. C. Chambers A Simple and Rapid Method for Mounting
Serial Sections for Electron Microscopy 724
David Danon An Instrument to Trim Plastic Specimen
Blocks for Electron Microscopy Prior to
Sectioning . . . . . . . . . . . . . . . 726
Morris Belkin and
Walter G. Hardy Relation Between Water Permeability and
Integrity of Sulfhydryl Groups in
Malignant and Normal Cells . . . . . . . 733
William H. Telfer The Route of Entry and Localization of
Blood Proteins in the Oocytes of
Saturniid Moths . . . . . . . . . . . . 747
Norimitsu Watabe and
Karl M. Wilbur Studies on Shell Formation . . . . . . . 761
E. Essner and
Alex B. Novikoff Localization of Acid Phosphatase
Activity in Hepatic Lysosomes by Means
of Electron Microscopy . . . . . . . . . 773
Lionel I. Rebhun Applications of Freeze-Substitution to
Electron Microscope Studies of
Invertebrate Oocytes . . . . . . . . . . 785
Albert I. Lansing and
Francois Lamy Fine Structure of the Cilia of Rotifers 799
Edgar A. Tonna The Cellular Complement of the Skeletal
System Studied Autoradiographically with
Tritiated Thymidine (H$^3$ Tdr) During
Growth and Aging . . . . . . . . . . . . 813
Edward J. Reith The Ultrastructure of Ameloblasts During
Matrix Formation and the Maturation of
Enamel . . . . . . . . . . . . . . . . . 825
G. H. Haggis Electron Microscope Replicas from the
Surface of a Fracture Through Frozen
Cells . . . . . . . . . . . . . . . . . 841
Jack Rosenbluth and
Sanford L. Palay The Fine Structure of Nerve Cell Bodies
and Their Myelin Sheaths in the Eighth
Nerve Ganglion of the Goldfish . . . . . 853
C. F. Robinow Mitosis in the Yeast Lipomyces Lipofer 879
S. Ralph Himmelhoch and
Morris J. Karnovsky Oxidative and Hydrolytic Enzymes in the
Nephron of Necturus Maculosus . . . . . 893
Heather Donald Mayor and
James C. Hampton and
Benjamin Rosario A Simple Method for Removing the Resin
from Epoxy-Embedded Tissue . . . . . . . 909
Walter G. Rosen and
Kenneth A. Siegesmund Some Observations on the Fine Structure
of a Thermophilic, Acidophilic Alga . . 910
Carolyn G. Smoller and
Dorothy R. Pitelka and
Howard A. Bern Cytoplasmic inclusion bodies in
cortisol--treated mammary tumors of
C3H/Crgl mice . . . . . . . . . . . . . 915
H. Moor and
K. Mühlethaler and
H. Waldner and
A. Frey-Wyssling A New Freezing-Ultramicrotome . . . . . 1
Gerald S. Gotterer and
Thomas E. Thompson and
Albert L. Lehninger Angular Light-Scattering Studies on
Isolated Mitochondria . . . . . . . . . 15
Joseph C. Arcos and
Hans H. Gosch and
David Zickafoose Fine Structural Alterations in Cell
Particles During Chemical Carcinogenesis 23
Lucien G. Caro Electron Microscopic Radioautography of
Thin Sections: the Golgi Zone As a Site
of Protein Concentration in Pancreatic
Acinar Cells . . . . . . . . . . . . . . 37
Albert W. Sedar Electron Microscopy of the Oxyntic Cell
in the Gastric Glands of the Bullfrog,
Rana Catesbiana . . . . . . . . . . . . 47
Eva B. Simmel and
David A. Karnofsky Observations on the Uptake of Tritiated
Thymidine in the Pronuclei of Fertilized
Sand Dollar Embryos . . . . . . . . . . 59
Mary Bartlett Bunge and
Richard P. Bunge and
Hans Ris Ultrastructural Study of Remyelination
in an Experimental Lesion in Adult Cat
Spinal Cord . . . . . . . . . . . . . . 67
T. S. Leeson and
H. Kalant Effects of in Vivo Decalcification on
Ultrastructure of Adult Rat Liver . . . 95
M. Rabinovitch and
R. Brentani and
S. Ferreira and
N. Fausto and
T. Maack Alkaline Ribonuclease Activity Increase
in Rat Kidney Cortex and Liver After
Trypan Blue and Other Azo Dyes
Administration . . . . . . . . . . . . . 105
S. N. Chatterjee and
P. Sadhukhan and
J. B. Chatterjea Electron Microscope Studies on the
Haemoglobin Molecules . . . . . . . . . 113
G. A. Meek and
M. J. Moses Microtubulation of the Inner Membrane of
the Nuclear Envelope . . . . . . . . . . 121
James H. McAlear and
George Camougis and
Lloyd F. Thibodeau Mapping of Large Areas with the Electron
Microscope . . . . . . . . . . . . . . . 133
N. W. Wakid and
Dorothy M. Needham Effect of Estradiol Injection on the
Cytoplasmic Fractions of the Myometrium
in the Ovariectomized Rat . . . . . . . 136
James C. Hampton and
Henry Quastler Combined Autoradiography and Electron
Microscopy of Thin Sections of
Intestinal Epithelial Cells of the Mouse
Labeled with H$^3$-Thymidine . . . . . . 140
Clinton B. Lillibridge Membranes of the Human Pepsinogen
Granule . . . . . . . . . . . . . . . . 145
M. A. Epstein Some Unusual Features of Fine Structure
Observed in HeLa Cells . . . . . . . . . 153
Joseph G. Gall Centriole Replication . . . . . . . . . 163
David J. L. Luck Glycogen Synthesis from Uridine
Diphosphate Glucose . . . . . . . . . . 195
Arthur L. Colwin and
Laura Hunter Colwin Fine Structure of the Spermatozoon of
Hydroides Hexagonus (Annelida), with
Special Reference to the Acrosomal
Region . . . . . . . . . . . . . . . . . 211
Laura Hunter Colwin and
Arthur L. Colwin Changes in the Spermatozoon During
Fertilization in Hydroides Hexagonus
(Annelida) . . . . . . . . . . . . . . . 231
Arthur L. Colwin and
Laura Hunter Colwin Changes in the Spermatozoon During
Fertilization in Hydroides Hexagonus
(Annelida) . . . . . . . . . . . . . . . 255
Daniel G. Szollosi and
Hans Ris Observations on Sperm Penetration in the
Rat . . . . . . . . . . . . . . . . . . 275
Albert Wollenberger and
Wolfgang Schulze Mitochondrial Alterations in the
Myocardium of Dogs with Aortic Stenosis 285
B. Shannon Danes and
Mary Struthers The Influence of Iron-Dextran Complex on
the Strain L Fibroblast . . . . . . . . 289
Atsushi Suganuma The Plasma Membrane of Staphylococcus
Aureus . . . . . . . . . . . . . . . . . 292
Montrose J. Moses Spermiogenesis in the Crayfish
(\bionameProcambarus Clarkii) . . . . . 301
C. Richard Zobel and
Michael Beer Electron Stains . . . . . . . . . . . . 335
Cecil E. Hall and
Liebe F. Cavalieri Four-Stranded DNA As Determined by
Electron Microscopy . . . . . . . . . . 347
G. W. Salisbury and
W. J. Birge and
L. de la Torre and
J. R. Lodge Decrease in Nuclear Feulgen-Positive
Material (DNA) Upon Aging in In Vitro
Storage of Bovine Spermatozoa . . . . . 353
Eduardo De Robertis and
Amanda Pellegrino de Iraldi Plurivesicular Secretory Processes and
Nerve Endings in the Pineal Gland of the
Rat . . . . . . . . . . . . . . . . . . 361
D. A. Lowther and
N. M. Green and
J. A. Chapman Morphological and Chemical Studies of
Collagen Formation . . . . . . . . . . . 373
Richard Holmes and
Sonya W. Wolfe Serum Fractionation and the Effects of
Bovine Serum Fractions on Human Cells
Grown in a Chemically Defined Medium . . 389
Endre Egyházi and
Holger Hydén Experimentally Induced Changes in the
Base Composition of the Ribonucleic
Acids of Isolated Nerve Cells and Their
Oligodendroglial Cells . . . . . . . . . 403
W. S. Morgan and
P. Perlmann and
T. Hultin Autoradiographic Analysis on Agar Plates
of Antigens from Sub Cellular Fractions
of Rat Liver Slices . . . . . . . . . . 411
George B. Chapman and
Alden B. Dawson Fine Structure of the Larval Anuran
Epidermis, with Special Reference to the
Figures of Eberth . . . . . . . . . . . 425
Elizabeth H. Leduc and
Wilhelm Bernhard Ultrastructural Cytochemistry . . . . . 437
Elizabeth D. Hay Fine Structure of an Unusual
Intracellular Supporting Network in the
Leydig Cells of Amblystoma Epidermis . . 457
Emilio Veratti Investigations on the Fine Structure of
Striated Muscle Fiber . . . . . . . . . 1
David S. Smith Reticular Organizations Within the
Striated Muscle Cell . . . . . . . . . . 61
Don W. Fawcett and
Jean Paul Revel The Sarcoplasmic Reticulum of a
Fast-Acting Fish Muscle . . . . . . . . 89
James F. Reger The Fine Structure of Neuromuscular
Junctions and the Sarcoplasmic Reticulum
of Extrinsic Eye Muscles of Fundulus
Heteroclitus . . . . . . . . . . . . . . 111
David S. Smith The Structure of Insect Fibrillar Flight
Muscle . . . . . . . . . . . . . . . . . 123
Lee D. Peachey Structure of the Longitudinal Body
Muscles of Amphioxus . . . . . . . . . . 159
Alexander Mauro and
W. Robert Adams The Structure of the Sarcolemma of the
Frog Skeletal Muscle Fiber . . . . . . . 177
C. R. Skoglund Functional Analysis of Swim-Bladder
Muscles Engaged in Sound Production of
the Toadfish . . . . . . . . . . . . . . 187
U. Muscatello and
Ebba Andersson-Cedergren and
G. F. Azzone and
Alexandra von der Decken The Sarcotubular System of Frog Skeletal
Muscle . . . . . . . . . . . . . . . . . 201
Keith R. Porter The Sarcoplasmic Reticulum . . . . . . . 219
Daniel Mazia and
J. M. Mitchison and
Heitor Medina and
Patricia Harris The Direct Isolation of the Mitotic
Apparatus . . . . . . . . . . . . . . . 467
S. Dales and
L. Siminovitch The Development of Vaccinia Virus in
Earle's L Strain Cells As Examined by
Electron Microscopy . . . . . . . . . . 475
Audrey M. Glauert and
David A. Hopwood The Fine Structure of
\bionameStreptomyces Violaceoruber
(\bionameS. Coelicolor) . . . . . . . . 505
S. I. Zacks and
J. M. Blumberg Observations on the Fine Structure and
Cytochemistry of Mouse and Human
Intercostal Neuromuscular Junctions . . 517
Lee D. Peachey and
Howard Rasmussen Structure of the Toad's Urinary Bladder
As Related to Its Physiology . . . . . . 529
Orville Wyss and
Marilyn G. Neumann and
M. D. Socolofsky Development and Germination of the
Azotobacter Cyst . . . . . . . . . . . . 555
John J. Callaghan and
Paul Grun Incorporation of C$^{14}$-Labeled Maleic
Hydrazide into the Root-Tip Cells of
\bionameAllium Cernuum, \bionameVicia
Faba, and \bionameTradescantia Paludosa 567
M. H. Silk and
A. O. Hawtrey and
I. M. Spence and
J. H. S. Gear A Method for Intracellular
Autoradiography in the Electron
Microscope . . . . . . . . . . . . . . . 577
Michael Locke Pore Canals and Related Structures in
Insect Cuticle . . . . . . . . . . . . . 589
R. P. Perry Kinetics of Nucleoside Incorporation
into Nuclear and Cytoplasmic RNA . . . . 1
Richard S. Thomas and
Robley C. Williams Localization of DNA and Protein in
Tipula Iridescent Virus (Tiv) by
Enzymatic Digestion and Electron
Microscopy . . . . . . . . . . . . . . . 15
S. J. Holt and
R. Marian Hicks Studies on Formalin Fixation for
Electron Microscopy and Cytochemical
Staining Purposes . . . . . . . . . . . 31
S. J. Holt and
R. Marian Hicks The Localization of Acid Phosphatase in
Rat Liver Cells As Revealed by Combined
Cytochemical Staining and Electron
Microscopy . . . . . . . . . . . . . . . 47
Bernard Tunik and
Howard Holtzer The Distribution of Muscle Antigens in
Contracted Myofibrils Determined by
Fluorescein-Labeled Antibodies . . . . . 67
P. D. Deshpande and
D. D. Hickman and
R. W. Von Korff Morphology of Isolated Rabbit Heart
Muscle Mitochondria and the Oxidation of
Extramitochondrial Reduced
Diphosphopyridine Nucleotide . . . . . . 77
F. Carlsen and
G. G. Knappeis and
F. Buchthal Ultrastructure of the Resting and
Contracted Striated Muscle Fiber at
Different Degrees of Stretch . . . . . . 95
David S. Smith The Organization of the Flight Muscle in
a Dragonfly, Aeshna Sp. (Odonata) . . . 119
John Aronson Sarcomere Size in Developing Muscles of
a Tarsonemid Mite . . . . . . . . . . . 147
R. Price Peterson and
Frank A. Pepe The Fine Structure of Inhibitory
Synapses in the Crayfish . . . . . . . . 157
Seizo Tsuda and
E. L. Tatum Intracellular Crystalline Ergosterol in
Neurospora . . . . . . . . . . . . . . . 171
I. R. Gibbons The Relationship Between the Fine
Structure and Direction of Beat in Gill
Cilia of a Lamellibranch Mollusc . . . . 179
Ruth Bellairs The Structure of the Yolk of the Hen's
Egg As Studied by Electron Microscopy 207
Robert C. Buck Lamellae in the Spindle of Mitotic Cells
of Walker 256 Carcinoma . . . . . . . . 227
Arnaldo Lasansky Morphological Bases for a Nursing Role
of Glia in the Toad Retina. Electron
Microscope Observations . . . . . . . . 237
E. Roter Dirksen The Presence of Centrioles in
Artificially Activated Sea Urchin Eggs 244
Harrison Latta and
Arvid B. Maunsbach and
Sidney C. Madden Cilia in Different Segments of the Rat
Nephron . . . . . . . . . . . . . . . . 248
Michael L. Watson and
William G. Aldridge Methods for the Use of Indium As an
Electron Stain for Nucleic Acids . . . . 257
H. E. Huxley and
G. Zubay Preferential Staining of Nucleic
Acid-Containing Structures for Electron
Microscopy . . . . . . . . . . . . . . . 273
Walther Stoeckenius Electron Microscopy of DNA Molecules
``Stained'' with Heavy Metal Salts . . . 297
Yasuo Hotta and
Herbert Stern Transient Phosphorylation of
Deoxyribosides and Regulation of
Deoxyribonucleic Acid Synthesis . . . . 311
R. E. Monro Serological Studies on the Formation of
Protein Parasporal Inclusions in
Bacillus Thuringiensis . . . . . . . . . 321
Susumu Ito The Endoplasmic Reticulum of Gastric
Parietal Cells . . . . . . . . . . . . . 333
A. W. Sedar and
M. H. F. Friedman Correlation of the Fine Structure of the
Gastric Parietal Cell (Dog) with
Functional Activity of the Stomach . . . 349
Joseph D. Feldman and
Jacinto J. Vazquez and
Stanley M. Kurtz Maturation of the Rat Fetal Thyroid . . 365
Bryce L. Munger The Ultrastructure and Histophysiology
of Human Eccrine Sweat Glands . . . . . 385
Bryce L. Munger and
Saul W. Brusilow An Electron Microscopic Study of Eccrine
Sweat Glands of the Cat Foot and Toe
Pads --- Evidence for Ductal
Reabsorption in the Human . . . . . . . 403
Patricia Harris Electron Microscope Study of Mitosis in
Sea Urchin Blastomeres . . . . . . . . . 419
Shimon Klein and
A. Poljakoff-Mayber Fine Structure and Pigment Conversion in
Isolated Etiolated Proplastids . . . . . 433
Kenji Takeya and
Masaatsu Koike and
Ryoichi Mori and
Tadao Toda Light and Electron Microscope Studies of
Mycobacterium --- Mycobacteriophage
Interactions . . . . . . . . . . . . . . 441
Elliott Robbins Some Theoretical Aspects of Osmium
Tetroxide Fixation with Special
Reference to the Metaphase Chromosomes
of Cell Cultures . . . . . . . . . . . . 449
O. Núñez-Montiel and
J. Weibel and
J. Vitelli-Flores Electron Microscopic Study of the
Cytopathology of Echo Virus Infection in
Cultivated Cells . . . . . . . . . . . . 457
Edwin S. Boatman and
Howard C. Douglas Fine Structure of the Photosynthetic
Bacterium Rhodomicrobium Vannielii . . . 469
Robert B. Painter Asynchronous Replication of HeLa S3
Chromosomal Deoxyribonucleic Acid . . . 485
Arthur J. Hale Historadiographic Identification of
Alkaline Phosphatase . . . . . . . . . . 488
D. F. Parsons A Simple Method for Obtaining Increased
Contrast in Araldite Sections by Using
Postfixation Staining of Tissues with
Potassium Permanganate . . . . . . . . . 492
Albert I. Lansing and
François Lamy Localization of ATP Ase in Rotifer Cilia 498
Bryce L. Munger Staining Methods Applicable to Sections
of Osmium-Fixed Tissue for Light
Microscopy . . . . . . . . . . . . . . . 502
Mortimer L. Mendelsohn The Two-Wavelength Method of
Microspectrophotometry . . . . . . . . . 509
Frank A. Pepe The Use of Specific Antibody in Electron
Microscopy . . . . . . . . . . . . . . . 515
Frank A. Pepe and
H. Finck The Use of Specific Antibody in Electron
Microscopy . . . . . . . . . . . . . . . 521
Frank A. Pepe and
H. Finck and
H. Holtzer The Use of Specific Antibody in Electron
Microscopy . . . . . . . . . . . . . . . 533
Jan-Erik Edström and
Wolfgang Grampp and
Norberto Schor The Intracellular Distribution and
Heterogeneity of Ribonucleic Acid in
Starfish Oocytes . . . . . . . . . . . . 549
R. W. Merriam On the Fine Structure and Composition of
the Nuclear Envelope . . . . . . . . . . 559
G. Majno and
G. E. Palade Studies on Inflammation . . . . . . . . 571
G. Majno and
G. E. Palade and
Gutta I. Schoefl Studies on Inflammation . . . . . . . . 607
H. Robert Dudley and
David Spiro The Fine Structure of Bone Cells . . . . 627
N. M. Hancox and
B. Boothroyd Motion Picture and Electron Microscope
Studies on the Embryonic Avian
Osteoclast . . . . . . . . . . . . . . . 651
Allen Wachtel and
Robert Mathewson and
Harry Grundfest Electron Microscopic and Histochemical
Comparison of the Two Types of
Electroplaques of Narcine Brasiliensis 663
Russell Ross and
Earl P. Benditt Wound Healing and Collagen Formation . . 677
Alan F. Bird The Ultrastructure and Histochemistry of
a Nematode-Induced Giant Cell . . . . . 701
G. Adolph Ackerman Histochemistry of the Centrioles and
Centrosomes of the Leukemic Cells from
Human Myeloblastic Leukemia . . . . . . 717
J. V. Frei and
H. Sheldon A Small Granular Component of the
Cytoplasm of Keratinizing Epithelia . . 719
J. V. Frei and
H. Sheldon Corpus Intra Cristam: a Dense Body
Within Mitochondria of Cells in
Hyperplastic Mouse Epidermis . . . . . . 724
Morris J. Karnovsky Simple methods for ``staining with
lead'' at high pH in electron microscopy 729
A. Peters A Radial Component of Central Myelin
Sheaths . . . . . . . . . . . . . . . . 733
Giuseppe Millonig A Modified Procedure for Lead Staining
of Thin Sections . . . . . . . . . . . . 736
Richard M. Franklin A Cytochemical Description of the
Multiplication of Mengovirus in L-929
Cells . . . . . . . . . . . . . . . . . 1
J. Chauveau and
Y. Moulé and
C. Rouiller and
J. Schneebeli Isolation of Smooth Vesicles and Free
Ribosomes from Rat Liver Microsomes . . 17
I. Ohad and
D. Danon and
S. Hestrin Synthesis of Cellulose by Acetobacter
Xylinum . . . . . . . . . . . . . . . . 31
R. E. Kane The mitotic apparatus: isolation by
controlled pH . . . . . . . . . . . . . 47
L. E. Roth and
E. W. Daniels Electron Microscopic Studies of Mitosis
in Amebae . . . . . . . . . . . . . . . 57
R. W. Merriam Some Dynamic Aspects of the Nuclear
Envelope . . . . . . . . . . . . . . . . 79
F. O. Simpson and
S. J. Oertelis The Fine Structure of Sheep Myocardial
Cells; Sarcolemmal Invaginations and the
Transverse Tubular System . . . . . . . 91
Allen C. Enders Observations on the Fine Structure of
Lutein Cells . . . . . . . . . . . . . . 101
I. Elizabeth Young and
Philip C. Fitz-James Chemical and Morphological Studies of
Bacterial Spore Formation . . . . . . . 115
Vladimir P. Gilëv A Study of Myofibril Sarcomere Structure
During Contraction . . . . . . . . . . . 135
T. M. Rizki and
Rose M. Rizki Cytodifferentiation in the Rosy Mutant
of \bionameDrosophila Melanogaster . . . 149
Carl M. Feldherr The Intracellular Distribution of
Ferritin Following Microinjection . . . 159
George T. Rudkin and
Helen A. Griech On the Persistence of Oocyte Nuclei from
Fetus to Maturity in the Laboratory
Mouse . . . . . . . . . . . . . . . . . 169
P. Emmelot and
I. J. Mizrahi and
R. Naccarato and
E. L. Benedetti Changes in Function and Structure of the
Endoplasmic Reticulum of Rat Liver Cells
After Administration of Cysteine . . . . 177
Peter Satir On the Evolutionary Stability of the 9 +
2 Pattern . . . . . . . . . . . . . . . 181
Robert D. Allen and
Ronald R. Cowden Syneresis in Ameboid Movement: Its
Localization by Interference Microscopy
and Its Significance . . . . . . . . . . 185
Elson L. Craig and
Walter J. Frajola and
Marie H. Greider An Embedding Technique for Electron
Microscopy Using Epon 812 . . . . . . . 190
Julie Micou and
Carter C. Collins and
T. Timothy Crocker Nuclear-Cytoplasmic Relationships in
Human Cells in Tissue Culture . . . . . 195
Thomas P. Ashford and
Keith R. Porter Cytoplasmic Components in Hepatic Cell
Lysosomes . . . . . . . . . . . . . . . 198
V. Luzzati and
F. Husson The Structure of the Liquid-Crystalline
Phases of Lipid-Water Systems . . . . . 207
Walther Stoeckenius Some Electron Microscopical Observations
on Liquid-Crystalline Phases in
Lipid-Water Systems . . . . . . . . . . 221
W. Straus Colorimetric Investigation of the Uptake
of an Intravenously Injected Protein
(Horseradish Peroxidase) by Rat Kidney
and Effects of Competition by Egg White 231
Russell J. Barrnett The Fine Structural Localization of
Acetylcholinesterase at the Myoneural
Junction . . . . . . . . . . . . . . . . 247
Herbert J. Eichel and
Jay S. Roth Intracellular Localization of Enzymes in
Spleen . . . . . . . . . . . . . . . . . 263
Lawrence Herman and
Patrick J. Fitzgerald The Degenerative Changes in Pancreatic
Acinar Cells Caused by Dl-Ethionine . . 277
Lawrence Herman and
Patrick J. Fitzgerald Restitution of Pancreatic Acinar Cells
Following Ethionine . . . . . . . . . . 297
Bernard Weisblum and
Lawrence Herman and
Patrick J. Fitzgerald Changes in Pancreatic Acinar Cells
During Protein Deprivation . . . . . . . 313
Jack Rosenbluth The Fine Structure of Acoustic Ganglia
in the Rat . . . . . . . . . . . . . . . 329
Henry deF. Webster Transient, Focal Accumulation of Axonal
Mitochondria During the Early Stages of
Wallerian Degeneration . . . . . . . . . 361
Sanford L. Palay and
S. M. McGee-Russell and
Spencer Gordon and
Mary A. Grillo Fixation of Neural Tissues for Electron
Microscopy by Perfusion with Solutions
of Osmium Tetroxide . . . . . . . . . . 385
Jerome S. Kaye Acrosome Formation in the House Cricket 411
W. Thoenes Fine Structure of Lipid Granules in
Proximal Tubule Cells of Mouse Kidney 433
John M. Easton and
Burton Goldberg and
Howard Green Demonstration of Surface Antigens and
Pinocytosis in Mammalian Cells with
Ferritin-Antibody Conjugates . . . . . . 437
A. R. Muir and
A. Peters Quintuple-Layered Membrane Junctions at
Terminal Bars Between Endothelial Cells 443
Mary Bartlett Bunge and
Richard P. Bunge and
George D. Pappas Electron Microscopic Demonstration of
Connections Between Glia and Myelin
Sheaths in the Developing Mammalian
Central Nervous System . . . . . . . . . 448
Gordon I. Kaye and
George D. Pappas Studies on the Cornea . . . . . . . . . 457
Gordon I. Kaye and
George D. Pappas and
Anthony Donn and
Nancy Mallett Studies on the Cornea . . . . . . . . . 481
Satish Chandra The Reversal of Mitochondrial Membrane 503
Alfred M. Elliott and
John R. Kennedy and
Il Jin Bak Macronuclear Events in Synchronously
Dividing \bionameTetrahymena Pyriformis 515
Russell Ross and
Earl P. Benditt Wound Healing and Collagen Formation . . 533
G. Benjamin Bouck Chromatophore Development, Pits, and
Other Fine Structure in the Red Alga,
Lomentaria Baileyana (Harv.) Farlow . . 553
J. P. Revel The Sarcoplasmic Reticulum of the Bat
Cricothyroid Muscle . . . . . . . . . . 571
M. A. Epstein Observations on the Mode of Release of
Herpes Virus from Infected HeLa Cells 589
H. Sheldon and
F. B. Kimball Studies on Cartilage . . . . . . . . . . 599
Frank N. Low and
Max R. Clevenger Polyester-Methacrylate Embedments for
Electron Microscopy . . . . . . . . . . 615
Arnold L. Brown Microvilli of the Human Jejunal
Epithelial Cell . . . . . . . . . . . . 623
W. S. Morgan and
P. Perlmann and
T. Hultin Characterization of the Pattern of Amino
Acid Incorporation in Cell-Free Liver
Systems by Autoradiography of Precipitin
Reactions . . . . . . . . . . . . . . . 628
Renato Baserga A Study of Nucleic Acid Synthesis in
Ascites Tumor Cells by Two-Emulsion
Autoradiography . . . . . . . . . . . . 633
Richard G. Kessel Fine Structure of Pigment Inclusions in
the Test Cells of the Ovary of Styela 637
Carl M. Feldherr and
J. M. Marshall The Use of Colloidal Gold for Studies of
Intracellular Exchanges in the Ameba
Chaos Chaos . . . . . . . . . . . . . . 640
Richard M. Eakin and
Jane A. Westfall Fine Structure of the Notochord of
Amphioxus . . . . . . . . . . . . . . . 646
Emma Shelton Prolonged Survival of Rabbit Thoracic
Duct Lymphocytes in a Diffusion Chamber 652
B. K. Filshie and
G. E. Rogers An Electron Microscope Study of the Fine
Structure of Feather Keratin . . . . . . 1
Lionel Jaffe and
Helmut Etzold Orientation and Locus of Tropic
Photoreceptor Molecules in Spores of
Botrytis and Osmunda . . . . . . . . . . 13
John Aronson The Elongation of Myofibrils from the
Indirect Flight Muscle of
\bionameDrosophila . . . . . . . . . . . 33
Thomas Richardson and
A. L. Tappel Swelling of Fish Mitochondria . . . . . 43
Marilyn G. Farquhar and
George E. Palade Functional Evidence for the Existence of
a Third Cell Type in the Renal
Glomerulus . . . . . . . . . . . . . . . 55
T. Elliot Weier and
William W. Thomson The Grana of Starch-Free Chloroplasts of
Nicotiana Rustica . . . . . . . . . . . 89
Robert C. Buck and
James M. Tisdale The Fine Structure of the Mid-Body of
the Rat Erythroblast . . . . . . . . . . 109
Robert C. Buck and
James M. Tisdale An Electron Microscopic Study of the
Development of the Cleavage Furrow in
Mammalian Cells . . . . . . . . . . . . 117
G. Adolph Ackerman Electron Microscopy of the Bursa of
Fabricius of the Embryonic Chick with
Particular Reference to the
Lympho-Epithelial Nodules . . . . . . . 127
Hans Gunther Heide Electron Microscopic Observation of
Specimens Under Controlled Gas Pressure 147
George G. Rose An Unusual Behavior of Strain HeLa Cells
in Tissue Culture . . . . . . . . . . . 153
H. W. Beams and
Richard Kessel Intracisternal Granules of the
Endoplasmic Reticulum in the Crayfish
Oöcyte . . . . . . . . . . . . . . . . . 158
Michael L. Watson Observations on a Granule Associated
with Chromatin in the Nuclei of Cells of
Rat and Mouse . . . . . . . . . . . . . 162
H. Moe and
O. Behnke Cytoplasmic Bodies Containing
Mitochondria, Ribosomes, and Rough
Surfaced Endoplasmic Membranes in the
Epithelium of the Small Intestine of
Newborn Rats . . . . . . . . . . . . . . 168
D. M. Prescott and
F. J. Bollum and
B. C. Kluss Is DNA Polymerase a Cytoplasmic Enzyme? 172
D. M. Prescott and
R. F. Kimball and
R. F. Carrier Comparison Between the Timing of
Micronuclear and Macronuclear DNA
Synthesis in Euplotes Eurystomus . . . . 175
Lee D. Peachey and
Andrew F. Huxley Structural Identification of Twitch and
Slow Striated Muscle Fibers of the Frog 177
Michael Galton DNA Content of Placental Nuclei . . . . 183
Barbara B. McDonald Synthesis of Deoxyribonucleic Acid by
Micro- and Macronuclei of
\bionameTetrahymena Pyriformis . . . . . 193
William O. Rieke The in Vivo Reutilization of Lymphocytic
and Sarcoma DNA by Cells Growing in the
Peritoneal Cavity . . . . . . . . . . . 205
Philip Siekevitz and
George E. Palade Cytochemical Study on the Pancreas of
the Guinea Pig . . . . . . . . . . . . . 217
Holger Hydén and
Paul W. Lange A Kinetic Study of the Neuron-Glia
Relationship . . . . . . . . . . . . . . 233
Sally B. Fand and
Bo Thorell Spectrophotometry of the Periodic
Acid-Schiff Reaction with Pituitary
Hormones in Vitro and in Histological
Sections . . . . . . . . . . . . . . . . 239
A. S. Brill and
J. S. Olin and
B. M. Siegel The Specific Volume of Dry Protein . . . 249
Y. E. Rahman Electron Microscopy of Lysosome-Rich
Fractions from Rat Thymus Isolated by
Density-Gradient Centrifugation Before
and After Whole-Body X-Irradiation . . . 253
Antoni Horst and
Tadeusz Rudnicki The Effect of a Medium Dose (430
Roentgens) of X-Ray Irradiation on
Resting Cells of the Liver . . . . . . . 261
William Bloom and
Robert J. Leider Optical and Electron Microscopic Changes
in Ultraviolet-Irradiated Chromosome
Segments . . . . . . . . . . . . . . . . 269
Samuel Dales An Electron Microscope Study of the
Early Association Between Two Mammalian
Viruses and Their Hosts . . . . . . . . 303
G. G. Knappeis and
F. Carlsen The Ultrastructure of the Z Disc in
Skeletal Muscle . . . . . . . . . . . . 323
Åke Flock and
Jan Wersäll Synaptic Structures in the Lateral Line
Canal Organ of the Teleost Fish Lota
Vulgaris . . . . . . . . . . . . . . . . 337
Anthony W. Linnane and
Eberhards Vitols and
Patricia G. Nowland Studies on the Origin of Yeast
Mitochondria . . . . . . . . . . . . . . 345
W. C. Hymer and
W. H. McShan Isolation of Cytoplasmic Pituitary
Granules by Column Chromatography . . . 350
Dominic D. Dziewiatkowski Intracellular Synthesis of Chondroitin
Sulfate . . . . . . . . . . . . . . . . 359
J. E. Amoore Oxygen Tension and the Rates of Mitosis
and Interphase in Roots . . . . . . . . 365
J. E. Amoore Participation of a Non-Respiratory
Ferrous Complex During Mitosis in Roots 373
Hans Ris and
Walter Plaut Ultrastructure of DNA-Containing Areas
in the Chloroplast of Chlamydomonas . . 383
Frank V. Mercer and
Lawrence Bogorad and
Rosemary Mullens Studies with Cyanidium Caldarium . . . . 393
Jack Rosenbluth Subsurface Cisterns and Their
Relationship to the Neuronal Plasma
Membrane . . . . . . . . . . . . . . . . 405
L. J. Rode and
C. Willard Lewis and
J. W. Foster Electron Microscopy of Spores of
Bacillus Megaterium with Special
Reference to the Effects of Fixation and
Thin Sectioning . . . . . . . . . . . . 423
James A. Freeman and
Ben O. Spurlock A New Epoxy Embedment for Electron
Microscopy . . . . . . . . . . . . . . . 437
Robert Hadek and
Hewson Swift Nuclear Extrusion and Intracisternal
Inclusions in the Rabbit Blastocyst . . 445
J. M. de Beyer and
J. C. H. de Man and
J-P. Persijn Atpase activity on the intercalated disc
and C$_z$ bands of mouse heart muscle 452
Ennio Pannese Detection of Neurofilaments in the
Perikaryon of Hypertrophic Nerve Cells 457
B. C. Kluss Electron Microscopy of the Macronucleus
of Euplotes Eurystomus . . . . . . . . . 462
Heinz Herrmann and
Patricia L. Lebeau ATP Level, Cell Injury, and Apparent
Epithelium-Stroma Interaction in the
Cornea . . . . . . . . . . . . . . . . . 465
H. Sheldon and
M. Silverberg and
I. Kerner On the Differing Appearance of
Intranuclear and Cytoplasmic Glycogen in
Liver Cells in Glycogen Storage Disease 468
Valerio Monesi Autoradiographic Study of DNA Synthesis
and the Cell Cycle in Spermatogonia and
Spermatocytes of Mouse Testis Using
Tritiated Thymidine . . . . . . . . . . 1
Leonard L. Ross and
Murray B. Bornstein and
Gerard M. Lehrer Electron Microscopic Observations of Rat
and Mouse Cerebellum in Tissue Culture 19
Donald F. Parsons An Electron Microscope Study of
Radiation Damage in the Mouse Oocyte . . 31
Jòrgen Falck Larsen Electron Microscopy of the Uterine
Epithelium in the Rabbit . . . . . . . . 49
Carl M. Feldherr The Nuclear Annuli As Pathways for
Nucleocytoplasmic Exchanges . . . . . . 65
John E. Dowling and
Richard L. Sidman Inherited Retinal Dystrophy in the Rat 73
D. F. Ohye and
W. G. Murrell Formation and Structure of the Spore of
Bacillus Coagulans . . . . . . . . . . . 111
P. F. Millington and
J. B. Finean Electron Microscope Studies of the
Structure of the Microvilli on Principal
Epithelial Cells of Rat Jejunum After
Treatment in Hypo- and Hypertonic Saline 125
Kiyohide Kojima and
Sadao Kozuka Structural Changes in HeLa Cells
Cultivated in Serum-Free Medium . . . . 141
Jane Baxandall and
P. Perlmann and
B. A. Afzelius A Two-Layer Technique for Detecting
Surface Antigens in the Sea Urchin Egg
with Ferritin-Conjugated Antibody . . . 144
Albert W. Sedar Electron Microscopy of the Oxyntic Cell
in the Gastric Glands of the Bullfrog,
Rana Catesbiana . . . . . . . . . . . . 152
M. S. Buttrose The Influence of Environment on the
Shell Structure of Starch Granules . . . 159
Yael Eilam and
S. Klein The Effect of Light Intensity and
Sucrose Feeding on the Fine Structure in
Chloroplasts and on the Chlorophyll
Content of Etiolated Leaves . . . . . . 169
Joon H. Rho and
Margaret I. Chipchase Incorporation of Tritiated Cytidine into
Ribonucleic Acid by Isolated Pea Nuclei 183
Toshio Nagano Observations on the Fine Structure of
the Developing Spermatid in the Domestic
Chicken . . . . . . . . . . . . . . . . 193
Peter Barland and
Alex B. Novikoff and
David Hamerman Electron Microscopy of the Human
Synovial Membrane . . . . . . . . . . . 207
Harold F. Parks Unusual Formations of Ergastoplasm in
Parotid Acinous Cells of Mice . . . . . 221
Joseph A. Grasso and
Hewson Swift and
G. Adolph Ackerman Observations on the Development of
Erythrocytes in Mammalian Fetal Liver 235
H. Ryser and
J. B. Caulfield and
J. C. Aub Studies on Protein Uptake by Isolated
Tumor Cells . . . . . . . . . . . . . . 255
Cosmo G. MacKenzie and
Julia B. MacKenzie and
Oscar K. Reiss Isolation and Properties of a Cell from
Liver Characterized by Lipid-Rich
Particles . . . . . . . . . . . . . . . 269
Samuel Dales and
Richard M. Franklin A Comparison of the Changes in Fine
Structure of L Cells During Single
Cycles of Viral Multiplication,
Following Their Infection with the
Viruses of Mengo and
Encephalomyocarditis . . . . . . . . . . 281
Robert T. Ward The Origin of Protein and Fatty Yolk in
Rana Pipiens . . . . . . . . . . . . . . 303
Robert T. Ward The Origin of Protein and Fatty Yolk in
Rana Pipiens . . . . . . . . . . . . . . 309
T. R. Shanthaveerappa and
G. H. Bourne A Perineural Epithelium . . . . . . . . 343
G. R. Shepherd and
P. C. Sanders The Complementary Effects of
$2$-Mercaptoethanol and Trypsin in the
Lysis of HeLa Cells . . . . . . . . . . 346
Richard W. Young Cell Proliferation and Specialization
During Endochondral Osteogenesis in
Young Rats . . . . . . . . . . . . . . . 357
Jan-Erik Edström and
Wolfgang Beermann The Base Composition of Nucleic Acids in
Chromosomes, Puffs, Nucleoli, and
Cytoplasm of Chironomus Salivary Gland
Cells . . . . . . . . . . . . . . . . . 371
A. Lima-de-Faria and
Kirstine Borum The Period of DNA Synthesis Prior to
Meiosis in the Mouse . . . . . . . . . . 381
Setsuro Ebashi and
Fritz Lipmann Adenosine Triphosphate-Linked
Concentration of Calcium Ions in a
Particulate Fraction of Rabbit Muscle 389
I. K. Buckley Cellular Injury in Vitro: Phase Contrast
Studies on Injured Cytoplasm . . . . . . 401
G. Yasuzumi Electron Microscopy and X-Ray Scanning
Microanalysis of Needle Biopsy Material
from Human Liver . . . . . . . . . . . . 421
Sarah P. Gibbs Nuclear Envelope-Chloroplast
Relationships in Algae . . . . . . . . . 433
Howard G. Davies and
Michael Spencer The Variation in the Structure of
Erythrocyte Nuclei with Fixation . . . . 445
John E. Dowling and
I. R. Gibbons The Fine Structure of the Pigment
Epithelium in the Albino Rat . . . . . . 459
Patricia Harris Some Structural and Functional Aspects
of the Mitotic Apparatus in Sea Urchin
Embryos . . . . . . . . . . . . . . . . 475
Timothy H. Goldsmith Fine Structure of the Retinulae in the
Compound Eye of the Honey-Bee . . . . . 489
G. Yasuzumi X-Ray Scanning Microanalysis of
Elemental Iron Localized in Testicular
Nutritive Cells of Cipangopaludina
Malleata Reeve . . . . . . . . . . . . . 495
Michael Beer and
Peter J. Highton A Simple Preparation of Graphite-Coated
Grids for High Resolution Electron
Microscopy . . . . . . . . . . . . . . . 499
M. N. Berry Metabolic Properties of Cells Isolated
from Adult Mouse Liver . . . . . . . . . 1
M. N. Berry and
F. O. Simpson Fine Structure of Cells Isolated from
Adult Mouse Liver . . . . . . . . . . . 9
Åke Flock and
Jan Wersäll A Study of the Orientation of the
Sensory Hairs of the Receptor Cells in
the Lateral Line Organ of Fish, with
Special Reference to the Function of the
Receptors . . . . . . . . . . . . . . . 19
Arnold J. Kroll and
Toichiro Kuwabara Prevention of Phosphate-Induced
Mitochondrial Swelling . . . . . . . . . 29
Holger Hydén and
Endre Egyházi Changes in the Base Composition of
Nuclear Ribonucleic Acid of Neurons
During a Short Period of Enhanced
Protein Production . . . . . . . . . . . 37
R. F. Zeigel and
A. J. Dalton Speculations Based on the Morphology of
the Golgi Systems in Several Types of
Protein-Secreting Cells . . . . . . . . 45
Philip W. Brandt and
George D. Pappas An Electron Microscopic Study of
Pinocytosis in Ameba . . . . . . . . . . 55
Flaviu C. A. Romanul and
Roger G. Bannister Localized Areas of High Alkaline
Phosphatase Activity in the Terminal
Arterial Tree . . . . . . . . . . . . . 73
Masao Sano Further Studies on the Theta Cell of the
Mouse Anterior Pituitary As Revealed by
Electron Microscopy, with Special
Reference to the Mode of Secretion . . . 85
Russell Ross and
Earl P. Benditt Wound Healing and Collagen Formation . . 99
Michael B. Sporn and
Theodor Wanko and
Wesley Dingman The Isolation of Cell Nuclei from Rat
Brain . . . . . . . . . . . . . . . . . 109
Nirmal K. Das Synthetic Capacities of Chromosome
Fragments Correlated with Their Ability
to Maintain Nucleolar Material . . . . . 121
L. Stockinger Elektronenoptische Darstellung Einer
Makroglobulin-Retention in Plasmazellen
Des Menschlichen Knochenmarks. (German)
[Electron-optical Imaging of
Macroglobulin Retention in Human Bone
Marrow Plasma Cells] . . . . . . . . . . 131
H. M. Selzman and
Robert A. Liebelt Paneth Cell Granule of Mouse Intestine 136
Alex B. Novikoff and
Edward Essner Cytolysomes and Mitochondrial
Degeneration . . . . . . . . . . . . . . 140
Federico Gonzales A Masking Technique for Contrast Control
in Electron Micrographs . . . . . . . . 146
Koji Uchizono The Structure of Possible Photoreceptive
Elements in the Sixth Abdominal Ganglion
of the Crayfish . . . . . . . . . . . . 151
J. F. Perdue and
W. H. McShan Isolation and Biochemical Study of
Secretory Granules from Rat Pituitary
Glands . . . . . . . . . . . . . . . . . 159
Lucien G. Caro and
Robert P. van Tubergen High-Resolution Autoradiography . . . . 173
Lucien G. Caro High-Resolution Autoradiogaphy . . . . . 189
A. Cecil Taylor Responses of cells to pH changes in the
medium . . . . . . . . . . . . . . . . . 201
Richard L. Schultz and
Phyllis W. Schultz Enzyme Distribution in the Rat Fetus and
Placenta Following the Adminstration of
Ethionine . . . . . . . . . . . . . . . 211
George D. Pappas and
Virginia M. Tennyson An Electron Microscopic Study of the
Passage of Colloidal Particles from the
Blood Vessels of the Ciliary Processes
and Choroid Plexus of the Rabbit . . . . 227
Gordon I. Kaye Studies on the Cornea . . . . . . . . . 241
J. R. Casley-Smith The Identification of Chylomicra and
Lipoproteins in Tissue Sections and
Their Passage into Jejunal Lacteals . . 259
R. E. Kane The Mitotic Apparatus . . . . . . . . . 279
Edward Essner and
Alex B. Novikoff Cytological Studies on Two Functional
Hepatomas . . . . . . . . . . . . . . . 289
David M. Robertson and
F. Stephen Vogel Concentric Lamination of Glial Processes
in Oligodendrogliomas . . . . . . . . . 313
J. V. Frei The Fine Structure of the Basement
Membrane in Epidermal Tumors . . . . . . 335
Sarah P. Gibbs Chloroplast Development in Ochromonas
Danica . . . . . . . . . . . . . . . . . 343
Sergei Sorokin Centrioles and the Formation of
Rudimentary Cilia by Fibroblasts and
Smooth Muscle Cells . . . . . . . . . . 363
F. V. Mercer and
Maret Nittim and
J. V. Possingham The Effect of Manganese Deficiency on
the Structure of Spinach Chloroplasts 379
R. Lallier Les Effets Du Thiosorbitol Et Du
ThioglycÉRol Sur La Structure De
L'Appareil Mitotique De L'Oeuf De
L'Oursin Paracentrotus Lividus . . . . . 382
Daniel C. Pease Demonstration of a Highly Ordered
Pattern Upon a Mitochondrial Surface . . 385
Leonard Atkins and
Priscilla D. Taft and
Kusum P. Dalal Asynchronous DNA Synthesis of Sex
Chromatin in Human Interphase Nuclei . . 390
C. Roland Leeson The Application of Diazotype Color Films
to the Production of Projection Slides
of Electron Microscopic Material . . . . 394
Arnold M. Seligman and
Jacob S. Hanker and
Arlene R. Seaman and
Hannah E. Silberstein Stability of the Iodine--Carbon Bond of
Radioactive Iodoalbumin in the 50 Kv
Electron Beam . . . . . . . . . . . . . 395
Lois W. Tice and
Russell J. Barrnett Fine Structural Localization of
Adenosinetriphosphatase Activity in
Heart Muscle Myofibrils . . . . . . . . 401
Arthur J. Hale Identification of Some Cytochemical
Reaction Products by Historadiography 417
Arthur J. Hale Identification of Cytochemical Reaction
Products by Scanning X-Ray Emission
Microanalysis . . . . . . . . . . . . . 427
H. Ryser and
J. C. Aub and
J. B. Caulfield Studies on Protein Uptake by Isolated
Tumor Cells . . . . . . . . . . . . . . 437
Alex B. Novikoff and
Guy de Thé and
D. Beard and
J. W. Beard Electron Microscopic Study of the ATP
Ase Activity of the Bai Strain a
(Myeloblastosis) Avian Tumor Virus . . . 451
Arnaldo Lasansky and
Flora Wald The Extracellular Space in the Toad
Retina As Defined by the Distribution of
Ferrocyanide . . . . . . . . . . . . . . 463
Alden V. Loud A Method for the Quantitative Estimation
of Cytoplasmic Structures . . . . . . . 481
Gunter F. Bahr and
Elmar Zeitler Study of Mitochondria in Rat Liver . . . 489
Ralph T. Hinegardner The Isolation of Nuclei from Eggs and
Embryos of the Sea Urchin . . . . . . . 503
David N. Orth and
Howard E. Morgan The Effect of Insulin, Alloxan Diabetes,
and Anoxia on the Ultrastructure of the
Rat Heart . . . . . . . . . . . . . . . 509
M. Rabinovitch and
W. Plaut Cytoplasmic DNA Synthesis in Amoeba
Proteus . . . . . . . . . . . . . . . . 525
M. Rabinovitch and
W. Plaut Cytoplasmic DNA Synthesis in Amoeba
Proteus . . . . . . . . . . . . . . . . 535
Lars Ernster and
Philip Siekevitz and
George E. Palade Enzyme-Structure Relationships in the
Endoplasmic Reticulum of Rat Liver . . . 541
Lars Ernster and
Lois C. Jones A Study of the Nucleoside Tri- and
Diphosphate Activities of Rat Liver
Microsomes . . . . . . . . . . . . . . . 563
A. C. Fabergé and
C. Willard Lewis N-Vinylpyrrolidone As a Water Compatible
Constituent of Embedding Resins for
Sectioning in Electron Microscopy . . . 579
Hideo Yamagishi Interaction Between Nucleic Acids and
Berberine Sulfate . . . . . . . . . . . 589
Dorothy Gelber Feldman A Method of Staining Thin Sections with
Lead Hydroxide for Precipitate-Free
Sections . . . . . . . . . . . . . . . . 592
Ragnar Olsson The Relationship Between Ciliary
Rootlets and Other Cell Structures . . . 596
Aharon Gibor and
Sam Granick Ultraviolet Sensitive Factors in the
Cytoplasm That Affect the
Differentiation of Euglena Plastids . . 599
Ivar Agrell and
Hans-Åke Bergqvist Cytochemical Evidence for Varied DNA
Complexes in the Nuclei of
Undifferentiated Cells . . . . . . . . . 604
H. Warshawsky and
C. P. Leblond and
B. Droz Synthesis and Migration of Proteins in
the Cells of the Exocrine Pancreas As
Revealed by Specific Activity
Determination from Radioautographs . . . 1
Elizabeth D. Hay and
J. P. Revel The Fine Structure of the DNP Component
of the Nucleus . . . . . . . . . . . . . 29
Jae Kwon Choi The Fine Structure of the Urinary
Bladder of the Toad, Bufo Marinus . . . 53
J. K. Koehler and
K. Mühlethaler and
A. Freywyssling Electron Microscopic Autoradiography . . 73
J. Lust and
P. Drochmans Effect of Trypsin on Liver Microsomes 81
Steven L. Wissig The Anatomy of Secretion in the
Follicular Cells of the Thyroid Gland 93
M. Mussgay and
J. Weibel Electron Microscopic Studies on the
Development of Vesicular Stomatitis
Virus in Kb Cells . . . . . . . . . . . 119
Royall T. Moore and
James H. McAlear Fine Structure of Mycota . . . . . . . . 131
Jack Rosenbluth Contrast Between Osmium-Fixed and
Permanganate-Fixed Toad Spinal Ganglia 143
Toshiyuki Yamamoto Some Observations on the Fine Structure
of the Sympathetic Ganglion of Bullfrog 159
Henry Rappaport and
Takashi Nakai and
Hewson Swift The Fine Structure of Normal and
Neoplastic Melanocytes in the Syrian
Hamster, with Particular Reference to
Carcinogen-Induced Melanotic Tumors . . 171
J. P. Revel and
D. W. Fawcett and
C. W. Philpott Observations on Mitochondrial Structure 187
Willy Stäubli A New Embedding Technique for Electron
Microscopy, Combining a Water-Soluble
Epoxy Resin (Durcupan) with
Water-Insoluble Araldite . . . . . . . . 197
P. S. Moorhead and
Vittorio Defendi Asynchrony of DNA Synthesis in
Chromosomes of Human Diploid Cells . . . 202
Eugene Bell and
Y. T. Thathachari Development of Feather Keratin During
Embryogenesis of the Chick . . . . . . . 215
N. F. Rodman and
J. C. Painter and
N. B. McDevitt Platelet Disintegration During Clotting 225
G. R. Martin and
E. Schiffmann and
H. A. Bladen and
Marie Nylen Chemical and Morphological Studies on
the in Vitro Calcification of Aorta . . 243
Andrew G. Plaut and
William H. Fishman Beta Glucuronidase-Rich Cytoplasmic
Particles in Androgen-Stimulated Mouse
Kidney . . . . . . . . . . . . . . . . . 253
Yasuo Hotta and
Herbert Stern Inhibition of Protein Syntheses During
Meiosis and Its Bearing on Intracellular
Regulation . . . . . . . . . . . . . . . 259
J. Walter Wilson and
Elizabeth H. Leduc Mitochondrial Changes in the Liver of
Essential Fatty Acid-Deficient Mice . . 281
Douglas A. Nelson and
Ellis S. Benson On the Structural Continuities of the
Transverse Tubular System of Rabbit and
Human Myocardial Cells . . . . . . . . . 297
A. Lima-de-Faria and
J. Reitalu Heterochromatin in Human Male Leukocytes 315
David S. Smith The Organization and Innervation of the
Luminescent Organ in a Firefly, Photuris
Pennsylvanica (Coleoptera) . . . . . . . 323
J. C. Thaemert The Ultrastructure and Disposition of
Vesiculated Nerve Processes in Smooth
Muscle . . . . . . . . . . . . . . . . . 361
Bryce L. Munger and
Sanford I. Roth The Cytology of the Normal Parathyroid
Glands of Man and Virginia Deer . . . . 379
Germaine Cohen-Bazire and
Riyo Kunisawa The Fine Structure of Rhodospirillum
Rubrum . . . . . . . . . . . . . . . . . 401
Werner R. Loewenstein and
Yoshinobu Kanno The Electrical Conductance and Potential
Across the Membrane of Some Cell Nuclei 421
G. Dallner and
S. Orrenius and
A. Bergstrand Isolation and Properties of Rough and
Smooth Vesicles from Rat Liver . . . . . 426
Mary A. Grillo and
Sanford L. Palay Ciliated Schwann Cells in the Autonomic
Nervous System of the Adult Rat . . . . 430
Karlheinz Bier Synthese, Interzellulärer Transport, Und
Abbau Von Ribonukleinsäure Im Ovar Der
Stubenfliege \bionameMusca Domestica.
(German) [Synthesis, Intercellular
Transport, and Breakdown of Ribonucleic
Acid in the Ovary of the Housefly
\bionameMusca Domestica] . . . . . . . . 436
Charles G. Rosa and
Kwan-Chung Tsou The Use of Tetranitro-Blue Tetrazolium
for the Cytochemical Localization of
Succinic Dehydrogenase . . . . . . . . . 445
Donald G. Walker and
Arnold M. Seligman The Use of Formalin Fixation in the
Cytochemical Demonstration of Succinic
and Dpn- and Tpn-Dependent
Dehydrogenases in Mitochondria . . . . . 455
Alexandra von der Decken Labeling With $^{14}$C Amino Acids of
Albumin-Like Protein by Rat Liver
Ribonucleoprotein Particles . . . . . . 471
David J. L. Luck Formation of Mitochondria in Neurospora
Crassa . . . . . . . . . . . . . . . . . 483
John Tooze and
Howard G. Davies The Occurrence and Possible Significance
of Haemoglobin in the Chromosomal
Regions of Mature Erythrocyte Nuclei of
the Newt Triturus Cristatus Cristatus 501
T. M. Rizki Genetic Control of Cytodifferentiation 513
Anders Hamberger and
Holger Hydén Inverse Enzymatic Changes in Neurons and
Glia During Increased Function and
Hypoxia . . . . . . . . . . . . . . . . 521
Oswald Hess and
Günther F. Meyer Chromosomal Differentiations of the
Lampbrush Type Formed by the Y
Chromosome in \bionameDrosophila Hydei
and \bionameDrosophila Neohydei . . . . 527
Susumu Ito and
Robert J. Winchester The Fine Structure of the Gastric Mucosa
in the Bat . . . . . . . . . . . . . . . 541
A. D. Warth and
D. F. Ohye and
W. G. Murrell The Composition and Structure of
Bacterial Spores . . . . . . . . . . . . 579
A. D. Warth and
D. F. Ohye and
W. G. Murrell Location and Composition of Spore
Mucopeptide in Bacillus Species . . . . 593
Donald B. Malkoff and
Bernard L. Strehler The Ultrastructure of Isolated and in
Situ Human Cardiac Age Pigment . . . . . 611
June D. Almeida and
Allan F. Howatson A Negative Staining Method for
Cell-Associated Virus . . . . . . . . . 616
Donald F. Parsons Negative Staining of Thinly Spread Cells
and Associated Virus . . . . . . . . . . 620
I. R. Gibbons A Method for Obtaining Serial Sections
of Known Orientation from Single
Spermatozoa . . . . . . . . . . . . . . 626
E. Kallenbach and
E. Sandborn and
H. Warshawsky The Golgi Apparatus of the Ameloblast of
the Rat at the Stage of Enamel Matrix
Formation . . . . . . . . . . . . . . . 629
C. T. Ashworth and
F. J. Luibel and
S. C. Stewart The Fine Structural Localization of
Adenosine Triphosphatase in the Small
Intestine, Kidney, and Liver of the Rat 1
David D. Sabatini and
Klaus Bensch and
Russell J. Barrnett Cytochemistry and Electron Microscopy 19
S. T. Takats and
R. M. S. Smellie Thymidine Degradation Products in Plant
Tissues Labeled with Tritiated Thymidine 59
W. C. Hymer and
W. H. McShan Isolation of Rat Pituitary Granules and
the Study of Their Biochemical
Properties and Hormonal Activities . . . 67
T. M. Rizki and
Rose M. Rizki An Inducible Enzyme System in the Larval
Cells of \bionameDrosophila Melanogaster 87
Peter Albersheim and
Ursula Killias The Use of Bismuth As an Electron Stain
for Nucleic Acids . . . . . . . . . . . 93
J. Ross Colvin The Size of the Cellulose Microfibril 105
Audrey M. Glauert and
Mary R. Daniel and
J. A. Lucy and
J. T. Dingle Studies on the Mode of Action of Excess
of Vitamin A . . . . . . . . . . . . . . 111
C. F. Robinow Observations on Cell Growth, Mitosis,
and Division in the Fungus Basidiobolus
Ranarum . . . . . . . . . . . . . . . . 123
J. Jacob and
J. L. Sirlin Electron Microscope Studies on Salivary
Gland Cells . . . . . . . . . . . . . . 153
J. G. Lafontaine and
L. A. Chouinard A Correlated Light and Electron
Microscope Study of the Nucleolar
Material During Mitosis in \bionameVicia
Faba . . . . . . . . . . . . . . . . . . 167
Ben O. Spurlock and
Victoria C. Kattine and
James A. Freeman Technical Modifications in Maraglas
Embedding . . . . . . . . . . . . . . . 203
Edward S. Reynolds The use of lead citrate at high pH as an
electron-opaque stain in electron
microscopy . . . . . . . . . . . . . . . 208
Patrick Echlin The Fine Structure of the Cell Boundary
of the Blue-Green Alga Anacystis Montana 212
W. Gordon Whaley and
Hilton H. Mollenhauer The Golgi Apparatus and Cell Plate
Formation --- a Postulate . . . . . . . 216
Hilton H. Mollenhauer and
W. Gordon Whaley An Observation on the Functioning of the
Golgi Apparatus . . . . . . . . . . . . 222
Richard F. Fisher and
David J. Holbrook and
J. Logan Irvin Density Gradient Isolation of Rat Liver
Nuclei with High DNA Content . . . . . . 231
Robert Love and
Peter Wildy Cytochemical Studies of the
Nucleoproteins of HeLa Cells Infected
with Herpes Virus . . . . . . . . . . . 237
Donald G. Walker A Survey of Dehydrogenases in Various
Epithelial Cells in the Rat . . . . . . 255
Dante G. Scarpelli and
Elson L. Craig The Fine Localization of Nucleoside
Triphosphatase Activity in the Retina of
the Frog . . . . . . . . . . . . . . . . 279
Murray D. Rosenberg The Relative Extensibility of Cell
Surfaces . . . . . . . . . . . . . . . . 289
George J. Todaro and
Howard Green Quantitative Studies of the Growth of
Mouse Embryo Cells in Culture and Their
Development into Established Lines . . . 299
David Epel The Effects of Carbon Monoxide
Inhibition on ATP Level and the Rate of
Mitosis in the Sea Urchin Egg . . . . . 315
I. Ohad and
D. Danon and
S. Hestrin The Use of Shadow-Casting Technique for
Measurement of the Width of Elongated
Particles . . . . . . . . . . . . . . . 321
Claudio Pellegrino and
Clara Franzini An Electron Microscope Study of
Denervation Atrophy in Red and White
Skeletal Muscle Fibers . . . . . . . . . 327
S. Ahmad Shafiq Electron Microscopic Studies on the
Indirect Flight Muscles of
\bionameDrosophila Melanogaster . . . . 351
S. Ahmad Shafiq Electron Microscopic Studies on the
Indirect Flight Muscles of
\bionameDrosophila melanogaster . . . . 363
Marilyn G. Farquhar and
George E. Palade Junctional Complexes in Various
Epithelia . . . . . . . . . . . . . . . 375
Toshiyuki Yamamoto On the Thickness of the Unit Membrane 413
Nicole Granboulan and
P. Tournier and
R. Wicker and
W. Bernhard An Electron Microscope Study of the
Development of Sv40 Virus . . . . . . . 423
Walther Stoeckenius Some Observations on Negatively Stained
Mitochondria . . . . . . . . . . . . . . 443
J. Rosenbluth Fine Structure of Epineurial Muscle
Cells in \bionameAplysia Californica . . 455
Arthur M. Dannenberg and
Marvin S. Burstone and
Paul C. Walter and
June W. Kinsley A Histochemical Study of Phagocytic and
Enzymatic Functions of Rabbit
Mononuclear and Polymorphonuclear
Exudate Cells and Alveolar Macrophages 465
Rachel Oren and
Ann E. Farnham and
Kazuhisa Saito and
Eva Milofsky and
Manfred L. Karnovsky Metabolic Patterns in Three Types of
Phagocytizing Cells . . . . . . . . . . 487
Väinö K. Hopsu and
George G. Glenner A Histochemical Enzyme Kinetic System
Applied to the Trypsin-Like Amidase and
Esterase Activity in Human Mast Cells 503
Eleanor R. Siperstein Identification of the
Adrenocorticotrophin-Producing Cells in
the Rat Hypophysis by Autoradiography 521
V. T. Marchesi and
R. J. Barrnett The Demonstration of Enzymatic Activity
in Pinocytic Vesicles of Blood
Capillaries with the Electron Microscope 547
Ann B. Jacobson and
Hewson Swift and
Lawrence Bogorad Cytochemical Studies Concerning the
Occurrence and Distribution of RNA in
Plastids of \bionameZea Mays . . . . . . 557
Bertalan Csillik Submicroscopic Organization of the
Postsynaptic Membrane in the Myoneural
Junction . . . . . . . . . . . . . . . . 571
Francesco Clementi and
Gian Paolo Zocche Morphological and Pharmacological
Effects of Reserpine, Given Alone Or
After Iproniazid, on the Catechol Amines
of the Adrenal Glands of the Rat . . . . 587
Elliott W. Strauss The Absorption of Fat by Intestine of
Golden Hamster in Vitro . . . . . . . . 597
H. Moor and
K. Mühlethaler Fine Structure in Frozen-Etched Yeast
Cells . . . . . . . . . . . . . . . . . 609
Wolf H. Fahrenbach The Sarcoplasmic Reticulum of Striated
Muscle of a Cyclopoid Copepod . . . . . 629
John Mcd. Tormey Fine Structure of the Ciliary Epithelium
of the Rabbit, with Particular Reference
to ``Infolded Membranes,'' ``Vesicles,''
and the Effects of Diamox . . . . . . . 641
Jane Overton Intercellular Connections in the
Outgrowing Stolon of Cordylophora . . . 661
J. Sri Ram and
Saroj S. Tawde and
G. B. Pierce and
A. R. Midgley Preparation of Antibody-Ferritin
Conjugates for Immuno-Electron
Microscopy . . . . . . . . . . . . . . . 673
William R. Hendee and
William Zebrun and
Frederick J. Bonte Anomalous Structures in the Cytoplasm of
HeLa Cells Cultured in the Presence of
$5$-Bromodeoxyuridine . . . . . . . . . 675
Joseph Post and
Cheng-Ya Huang and
Joseph Hoffman The Replication Time and Pattern of the
Liver Cell in the Growing Rat . . . . . 1
Frank K. Thorp and
Albert Dorfman The Occurrence of Intracellular
Chondroitin Sulfate . . . . . . . . . . 13
Robert D. Campo and
Dominic D. Dziewiatkowski Turnover of the Organic Matrix of
Cartilage and Bone As Visualized by
Autoradiography . . . . . . . . . . . . 19
Ivan L. Cameron and
Richard C. Greulich Evidence for an Essentially Constant
Duration of DNA Synthesis in Renewing
Epithelia of the Adult Mouse . . . . . . 31
Max L. Birnstiel and
Beal B. Hyde Protein Synthesis by Isolated Pea
Nucleoli . . . . . . . . . . . . . . . . 41
Samuel Dales The Uptake and Development of Vaccinia
Virus in Strain L Cells Followed with
Labeled Viral Deoxyribonucleic Acid . . 51
G. A. Meek and
S. Bradbury Localization of Thiamine Pyrophosphatase
Activity in the Golgi Apparatus of a
Mollusc, \bionameHelix Aspersa . . . . . 73
Helen A. Padykula and
Geraldine F. Gauthier Cytochemical Studies of Adenosine
Triphosphatases in Skeletal Muscle
Fibers . . . . . . . . . . . . . . . . . 87
M. U. Nylen and
E. D. Eanes and
K.-Å. Omnell Crystal Growth in Rat Enamel . . . . . . 109
Arnold Tamarin and
Leo M. Sreebny An Analysis of Desmosome Shape, Size,
and Orientation by the Use of
Histometric and Densitometric Methods
with Electron Microscopy . . . . . . . . 125
Shuichi Karasaki Studies on Amphibian Yolk . . . . . . . 135
Robin A. Wallace and
Shuichi Karasaki Studies on Amphibian Yolk . . . . . . . 153
Robert M. Herndon The Fine Structure of the Purkinje Cell 167
Alden V. Loud and
Yutaka Mishima The Induction of Melanization in
Goldfish Scales with Acth, in Vitro . . 181
G. W. Richter and
A. Kellner Hypertrophy of the Human Heart at the
Level of Fine Structure . . . . . . . . 195
Heather Donald Mayor and
Liane E. Jordan Acrolein --- a Fine Structure Fixative
for Viral Cytochemistry . . . . . . . . 207
R. Price Peterson A Note on the Structure of Crayfish
Myofilaments . . . . . . . . . . . . . . 213
Robert D. Allen and
James Brault and
Robert D. Moore A New Method of Polarization Microscopic
Analysis . . . . . . . . . . . . . . . . 223
Elliott Robbins and
Philip I. Marcus Dynamics of Acridine Orange-Cell
Interaction . . . . . . . . . . . . . . 237
O. Behnke Demonstration of Acid
Phosphatase-Containing Granules and
Cytoplasmic Bodies in the Epithelium of
Foetal Rat Duodenum During Certain
Stages of Differentiation . . . . . . . 251
Rachele Maggio and
Philip Siekevitz and
George E. Palade Studies on Isolated Nuclei . . . . . . . 267
Rachele Maggio and
Philip Siekevitz and
George E. Palade Studies on Isolated Nuclei . . . . . . . 293
Daniel C. Pease The Ultrastructure of Flagellar Fibrils 313
Audrey M. Glauert and
D. Kerridge and
R. W. Horne The Fine Structure and Mode of
Attachment of the Sheathed Flagellum of
Vibrio Metchnikovii . . . . . . . . . . 327
Toshio Nagano Fine Structural Changes in the Flagellum
of the Spermatid in Experimental
Cryptorchidism of the Rat . . . . . . . 337
Peter Satir Studies on Cilia . . . . . . . . . . . . 345
David B. Slautterback Cytoplasmic Microtubules . . . . . . . . 367
C. W. Philpott and
D. E. Copeland Fine Structure of Chloride Cells from
Three Species of Fundulus . . . . . . . 389
A. C. Enders and
R. K. Enders and
S. Schlafke An Electron Microscope Study of the
Gland Cells of the Mink Endometrium . . 405
R. Wilsenach Differentiation of the Chloroplast of
Anthoceros . . . . . . . . . . . . . . . 419
Ryan W. Drum The Cytoplasmic Fine Structure of the
Diatom, Nitzschia Palea . . . . . . . . 429
G. Benjamin Bouck Stratification and Subsequent Behavior
of Plant Cell Organelles . . . . . . . . 441
Konrad Keck and
Elizabeth A. Choules An Analysis of Cellular and Subcellular
Systems Which Transform the Species
Character of Acid Phosphatase in
Acetabularia . . . . . . . . . . . . . . 459
Liselotte Mezger-Freed Evidence for Synthesis of
Deoxyribonucleic Acid in Enucleated Rana
Pipiens Eggs . . . . . . . . . . . . . . 471
Wolf H. Fahrenbach A Contribution to Glass Knife Breaking 475
Leonard Napolitano Cytolysomes in Metabolically Active
Cells . . . . . . . . . . . . . . . . . 478
Lester Packer Size and Shape Transformations
Correlated with Oxidative
Phosphorylation in Mitochondria . . . . 487
Lester Packer Size and Shape Transformations
Correlated with Oxidative
Phosphorylation in Mitochondria . . . . 495
Henry Tedeschi and
Joseph M. James and
William Anthony Photometric Evidence for the Osmotic
Behavior of Rat Liver Microsomes . . . . 503
B. J. Bryant Reutilization of Lymphocyte DNA by Cells
of Intestinal Crypts and Regenerating
Liver . . . . . . . . . . . . . . . . . 515
H. J. Evans and
J. R. K. Savage The Relation Between DNA Synthesis and
Chromosome Structure As Resolved by
X-Ray Damage . . . . . . . . . . . . . . 525
Robert M. Kodama and
Henry Tedeschi An Electron Microscope Study of Calf
Thymus Nuclear Preparations Isolated in
Sucrose Solutions . . . . . . . . . . . 541
J. E. Amoore Non-Identical Mechanisms of Mitotic
Arrest by Respiratory Inhibitors in Pea
Root Tips and Sea Urchin Eggs . . . . . 555
Morton D. Maser and
Robert V. Rice Soluble Earthworm Cuticle Collagen: a
Possible Dimer of Tropocollagen . . . . 569
Mary A. Bonneville Fine Structural Changes in the
Intestinal Epithelium of the Bullfrog
During Metamorphosis . . . . . . . . . . 579
Jerry S. Trier Studies on Small Intestinal Crypt
Epithelium . . . . . . . . . . . . . . . 599
H. W. Beams and
R. G. Kessel Electron Microscope Studies on
Developing Crayfish Oocytes with Special
Reference to the Origin of Yolk . . . . 621
Edith Krugelis MacRae Observations on the Fine Structure of
Pharyngeal Muscle in the Planarian
Dugesia Tigrina . . . . . . . . . . . . 651
Leonard Napolitano The Differentiation of White Adipose
Cells . . . . . . . . . . . . . . . . . 663
A. D. Brown and
C. D. Shorey The Cell Envelopes of Two Extremely
Halophilic Bacteria . . . . . . . . . . 681
Edward J. Reith The Ultrastructure of Ameloblasts During
Early Stages of Maturation of Enamel . . 691
Sasha Malamed Use of a Microcentrifuge for Preparation
of Isolated Mitochondria and Cell
Suspensions for Electron Microscopy . . 696
Norimitsu Watabe Decalcification of Thin Sections for
Electron Microscope Studies of
Crystal-Matrix Relationships in Mollusc
Shells . . . . . . . . . . . . . . . . . 701
Mary A. Bonneville and
Bruce R. Voeller A New Cytoplasmic Component of Plant
Cells . . . . . . . . . . . . . . . . . 703
Edwin W. Taylor Relation of Protein Synthesis to the
Division Cycle in Mammalian Cell
Cultures . . . . . . . . . . . . . . . . 1
Maureen Owen Cell population kinetics of an
osteogenic tissue $ \bullet $ I . . . . 19
Maureen Owen and
Sheila MacPherson Cell population kinetics of an
osteogenic tissue $ \bullet $ II . . . . 33
Yasuo Hotta and
Herbert Stern Synthesis of Messenger-Like Ribonucleic
Acid and Protein During Meiosis in
Isolated Cells of Trillium Erectum . . . 45
M. Chora\.zy and
A. Bendich and
E. Borenfreund and
D. J. Hutchison Studies on the Isolation of Metaphase
Chromosomes . . . . . . . . . . . . . . 59
M. Chora\.zy and
A. Bendich and
E. Borenfreund and
O. L. Ittensohn and
D. J. Hutchison Uptake of Mammalian Chromosomes by
Mammalian Cells . . . . . . . . . . . . 71
Paul K. Brown and
I. R. Gibbons and
George Wald The Visual Cells and Visual Pigment of
the Mudpuppy, Necturus . . . . . . . . . 79
John Aronson Overlap of the Birefringent Component of
Adjacent a Regions During the Induced
Shortening of Fibrils Teased from
\bionameDrosophila Muscle . . . . . . . 107
David S. Smith The Structure of Flight Muscle
Sarcosomes in the Blowfly
\bionameCalliphora Erythrocephala
(Diptera) . . . . . . . . . . . . . . . 115
Edward S. Reynolds Liver Parenchymal Cell Injury . . . . . 139
J. David Robertson and
Thomas S. Bodenheimer and
David E. Stage The Ultrastructure of Mauthner Cell
Synapses and Nodes in Goldfish Brains 159
J. David Robertson The Occurrence of a Subunit Pattern in
the Unit Membranes of Club Endings in
Mauthner Cell Synapses in Goldfish
Brains . . . . . . . . . . . . . . . . . 201
Gabriel Gasic and
Leonard Berwick Hale Stain for Sialic Acid-Containing
Mucins . . . . . . . . . . . . . . . . . 223
Björn A. Afzelius The Nucleus of Noctiluca Scintillans . . 229
M. C. Ledbetter and
K. R. Porter A ``Microtubule'' in Plant Cell Fine
Structure . . . . . . . . . . . . . . . 239
Thomas L. Hayes and
Frank T. Lindgren and
John W. Gofman A Quantitative Determination of the
Osmium Tetroxide-Lipoprotein Interaction 251
Morris J. Karnovsky and
Katharina Hug The Nature of the M Band Enzyme in Rat
Ventricular Muscle . . . . . . . . . . . 255
Paul R. Gross and
Gilles H. Cousineau Synthesis of Spindle-Associated Proteins
in Early Cleavage . . . . . . . . . . . 260
Carol G. Konrad Protein Synthesis and RNA Synthesis
During Mitosis in Animal Cells . . . . . 267
J.-E. Edström and
J. G. Gall The Base Composition of Ribonucleic Acid
in Lampbrush Chromosomes, Nucleoli,
Nuclear Sap, and Cytoplasm of
\bionameTriturus Oocytes . . . . . . . . 279
M. R. Loran and
T. T. Crocker Population Dynamics of Intestinal
Epithelia in the Rat Two Months After
Partial Resection of the Ileum . . . . . 285
W. L. Stahl and
J. C. Smith and
L. M. Napolitano and
R. E. Basford Brain Mitochondria . . . . . . . . . . . 293
Diana S. Beattie and
Howard R. Sloan and
R. E. Basford Brain Mitochondria . . . . . . . . . . . 309
Arnold W. Lindall and
G. Eric Bauer and
Padmaker K. Dixit and
Arnold Lazarow Isolation of an Insulin Secretion
Granule Fraction . . . . . . . . . . . . 317
M. A. Epstein and
S. J. Holt The Localization by Electron Microscopy
of HeLa Cell Surface Enzymes Splitting
Adenosine Triphosphate . . . . . . . . . 325
M. A. Epstein and
S. J. Holt Electron Microscope Observations on the
Surface Adenosine Triphosphatase-Like
Enzymes of HeLa Cells Infected with
Herpes Virus . . . . . . . . . . . . . . 337
Miro Brzin and
\vZiva Majcen-Tka\vcev Cholinesterase in Denervated End Plates
and Muscle Fibres . . . . . . . . . . . 349
John Aronson Observations on the Variations in Size
of the a Region of Arthropod Muscle . . 359
Sally G. Page and
H. E. Huxley Filament Lengths in Striated Muscle . . 369
Richard G. Kessel Electron Microscope Studies on the
Origin of Annulate Lamellae in Oocytes
of Necturus . . . . . . . . . . . . . . 391
M. W. Brightman and
S. L. Palay The Fine Structure of Ependyma in the
Brain of the Rat . . . . . . . . . . . . 415
D. R. Inman and
E. H. Cooper Electron Microscopy of Human Lymphocytes
Stimulated by Phytohaemagglutinin . . . 441
Elisabeth Gantt and
Howard J. Arnott Chloroplast Division in the Gametophyte
of the Fern Matteuccia Struthiopteris
(L.) Todaro . . . . . . . . . . . . . . 446
J. A. Dickson and
I. Leslie The Reaggregation and Metabolism of
Dissociated Adult Guinea Pig Cells in
Filter-Well Cultures . . . . . . . . . . 449
Thomas J. Byers and
Dorothy B. Platt and
Lester Goldstein The Cytonucleoproteins of Amebae . . . . 453
Thomas J. Byers and
Dorothy B. Platt and
Lester Goldstein The Cytonucleoproteins of Amebae . . . . 467
Arthur L. Colwin and
Laura Hunter Colwin Role of the Gamete Membranes in
Fertilization in Saccoglossus
Kowalevskii (Enteropneusta) . . . . . . 477
Laura Hunter Colwin and
Arthur L. Colwin Role of the Gamete Membranes in
Fertilization in Saccoglossus
Kowalevskii (Enteropneusta) . . . . . . 501
D. Stegwee and
E. C. Kimmel and
J. A. de Boer and
S. Henstra Hormonal Control of Reversible
Degeneration of Flight Muscle in the
Colorado Potato Beetle, Leptinotarsa
Decemlineata Say (Coleoptera) . . . . . 519
Neil C. R. Merrillees and
Geoffrey Burnstock and
Mollie E. Holman Correlation of Fine Structure and
Physiology of the Innervation of Smooth
Muscle in the Guinea Pig \bionameVas
Deferens . . . . . . . . . . . . . . . . 529
William T. Hall and
George Claus Ultrastructural Studies on the
Blue-Green Algal Symbiont in Cyanophora
Paradoxa Korschikoff . . . . . . . . . . 551
Seiichi Matsumoto Electron Microscope Studies of Rabies
Virus in Mouse Brain . . . . . . . . . . 565
Margit M. K. Nass and
Sylvan Nass Intramitochondrial Fibers with DNA
Characteristics . . . . . . . . . . . . 593
Sylvan Nass and
Margit M. K. Nass Intramitochondrial Fibers with DNA
Characteristics . . . . . . . . . . . . 613
Norma J. Lang An Additional Ultrastructural Component
of Flagella . . . . . . . . . . . . . . 631
Walter J. Humphreys Preparation of Carbon Films by Use of a
Glycerin Substrate . . . . . . . . . . . 634
Clara Franzini-Armstrong Pores in the Sarcoplasmic Reticulum . . 637
D. C. Swartzendruber and
C. C. Congdon Electron Microscope Observations on
Tingible Body Macrophages in Mouse
Spleen . . . . . . . . . . . . . . . . . 641
Luis R. Otero-Vilardebó and
Nathan Lane and
Gabriel C. Godman Demonstration of Mitochondrial ATP Ase
Activity in Formalin-Fixed Colonic
Epithelial Cells . . . . . . . . . . . . 647
Ray M. Iverson The Content and Relative Base Ratios of
Ribonucleic Acid in Amoeba . . . . . . . 1
Reinhard L. Friede The Enzymatic Response of Astrocytes to
Various Ions in Vitro . . . . . . . . . 5
John Seed The Relations Between DNA, RNA, and
Protein in Normal Embryonic Cell Nuclei
and Spontaneous Tumour Cell Nuclei . . . 17
Coral Duck-Chong and
J. K. Pollak and
R. J. North The Relation Between the Intracellular
Ribonucleic Acid Distribution and Amino
Acid Incorporation in the Liver of the
Developing Chick Embryo . . . . . . . . 25
James German The Pattern of DNA Synthesis in the
Chromosomes of Human Blood Cells . . . . 37
Joseph R. Williamson Adipose Tissue . . . . . . . . . . . . . 57
E. W. Daniels and
L. E. Roth Electron Microscopy of Mitosis in a
Radiosensitive Giant Amoeba . . . . . . 75
Paul F. Parakkal and
A. Gedeon Matoltsy A Study of the Fine Structure of the
Epidermis of Rana Pipiens . . . . . . . 85
Lee D. Peachey Electron Microscopic Observations on the
Accumulation of Divalent Cations in
Intramitochondrial Granules . . . . . . 95
Alfred M. Elliott and
Il Jin Bak The Fate of Mitochondria During Aging in
\bionameTetrahymena Pyriformis . . . . . 113
Everett Anderson Oocyte Differentiation and
Vitellogenesis in the Roach
\bionamePeriplaneta Americana . . . . . 131
W. S. Tyler and
J. Pangborn Laminated Membrane Surface and
Osmiophilic Inclusions in Avian Lung
Epithelium . . . . . . . . . . . . . . . 157
B. Boothroyd The Problem of Demineralisation in Thin
Sections of Fully Calcified Bone . . . . 165
G. G. Selman and
A. Jurand An Electron Microscope Study of the
Endoplasmic Reticulum in Newt Notochord
Cells After Disturbance with Ultrasonic
Treatment and Subsequent Regeneration 175
I. L. Cameron Is the Duration of DNA Synthesis in
Somatic Cells of Mammals and Birds a
Constant? . . . . . . . . . . . . . . . 185
Carl M. Feldherr Binding Within the Nuclear Annuli and
Its Possible Effect on Nucleocytoplasmic
Exchanges . . . . . . . . . . . . . . . 188
M. Steinert Le Chondriome De Trypanosoma Mega . . . 192
A. S. G. Curtis The Mechanism of Adhesion of Cells to
Glass . . . . . . . . . . . . . . . . . 199
G. W. Claus and
L. E. Roth Fine Structure of the Gram-Negative
Bacterium Acetobacter Suboxydans . . . . 217
Peter R. Bell and
Kurt Mühlethaler The Degeneration and Reappearance of
Mitochondria in the Egg Cells of a Plant 235
L. E. Roth and
Y. Shigenaka The Structure and Formation of Cilia and
Filaments in Rumen Protozoa . . . . . . 249
Yoshihiro Hamashima and
John G. Harter and
Albert H. Coons The Localization of Albumin and
Fibrinogen in Human Liver Cells . . . . 271
A. Peters Further Observations on the Structure of
Myelin Sheaths in the Central Nervous
System . . . . . . . . . . . . . . . . . 281
E. S. Boatman Observations on the Fine Structure of
Spheroplasts of Rhodospirillum Rubrum 297
Thomas F. Roth and
Keith R. Porter Yolk Protein Uptake in the Oocyte of the
Mosquito \bionameAedes Aegypti. L . . . 313
Herbert Voelz The ``Spindle-Shaped Body'' in
Fibroblasts . . . . . . . . . . . . . . 333
Robert M. Herndon Lamellar Bodies, an Unusual Arrangement
of the Granular Endoplasmic Reticulum 338
Alfredo Mariano Garcia Feulgen-DNA Values in Megakaryocytes . . 342
Robert M. Thornton and
Kenneth V. Thimann On a Crystal-Containing Body in Cells of
the Oat Coleoptile . . . . . . . . . . . 345
William P. Callahan and
Jack A. Horner The Use of Vanadium As a Stain for
Electron Microscopy . . . . . . . . . . 350
Elliott Robbins and
Nicholas K. Gonatas In Vitro Selection of the Mitotic Cell
for Subsequent Electron Microscopy . . . 356
Woutera van Iterson and
W. Leene A Cytochemical Localization of Reductive
Sites in a Gram-Positive Bacterium . . . 361
Woutera van Iterson and
W. Leene A Cytochemical Localization of Reductive
Sites in a Gram-Negative Bacterium . . . 377
Douglas Cameron Barker and
George Svihla Localization of Cytoplasmic Nucleic Acid
During Growth and Encystment of
Entamoeba Invadens . . . . . . . . . . . 389
Frances Kallman and
Clifford Grobstein Fine Structure of Differentiating Mouse
Pancreatic Exocrine Cells in Transfilter
Culture . . . . . . . . . . . . . . . . 399
Norman K. Wessells DNA Synthesis, Mitosis, and
Differentiation in Pancreatic Acinar
Cells in Vitro . . . . . . . . . . . . . 415
D. K. Hill The Location of Adenine Nucleotide in
the Striated Muscle of the Toad . . . . 435
Lawrence M. Roth and
Sarah A. Luse Fine Structure of the Neurohypophysis of
the Opossum (\bionameDidelphis
Virginiana) . . . . . . . . . . . . . . 459
Lucien G. Caro and
George E. Palade Protein Synthesis, Storage, and
Discharge in the Pancreatic Exocrine
Cell . . . . . . . . . . . . . . . . . . 473
Werner Straus Cytochemical Observations on the
Relationship Between Lysosomes and
Phagosomes in Kidney and Liver by
Combined Staining for Acid Phosphatase
and Intravenously Injected Horseradish
Peroxidase . . . . . . . . . . . . . . . 497
N. Orzalesi and
A. Bairati Filamentous Structures in the Inner
Segment of Human Retinal Rods . . . . . 509
P. F. Millington Comparison of the Thicknesses of the
Lateral Wall Membrane and the
Microvillus Membrane of Intestinal
Epithelial Cells from Rat and Mouse . . 514
J. D. McLean and
S. J. Singer Cross-Linked Polyampholytes . . . . . . 518
B. R. A. O'Brien The Partial Cytolysis of the Amphibian
Erythrocyte and Liver Parencyhma Cell by
a Non-Ionogenic Surface Active Agent . . 521
B. R. A. O'Brien A Rapid Method for the Isolation and
Collection of Nuclei from Whole Cell
Suspensions . . . . . . . . . . . . . . 525
Peter K. Hepler and
Eldon H. Newcomb Microtubules and Fibrils in the
Cytoplasm of Coleus Cells Undergoing
Secondary Wall Deposition . . . . . . . 529
Arthur M. Dannenberg and
William E. Bennett Hydrolytic Enzymes of Rabbit Mononuclear
Exudate Cells . . . . . . . . . . . . . 1
Janet A. Smith and
Hector F. DeLuca Structural Changes in Isolated Liver
Mitochondria of Rats During Essential
Fatty Acid Deficiency . . . . . . . . . 15
T. M. Rizki and
Rose M. Rizki Factors Affecting the Intracellualr
Synthesis of Kynurenine . . . . . . . . 27
Joseph Osinchak Electron Microscopic Localization of
Acid Phosphatase and Thiamine
Pyrophosphatase Activity in Hypothalamic
Neurosecretory Cells of the Rat . . . . 35
Elliott Robbins and
Philip I. Marcus and
Nicholas K. Gonatas Dynamics of Acridine Orange-Cell
Interaction . . . . . . . . . . . . . . 49
Takashi Nakai A Study of the Ultrastructural
Localization of Hair Keratin Synthesis
Utilizing Electron Microscopic
Autoradiography in a Magnetic Field . . 63
Jane Overton and
Jane Shoup Fine Structure of Cell Surface
Specializations in the Maturing Duodenal
Mucosa of the Chick . . . . . . . . . . 75
E. G. Gray and
J. Z. Young Electron Microscopy of Synaptic
Structure of Octopus Brain . . . . . . . 87
Klaus Bensch and
Gerald Gordon and
Leonard Miller The Fate of DNA-Containing Particles
Phagocytized by Mammalian Cells . . . . 105
Richard M. Eakin and
Jane A. Westfall Fine Structure of the Eye of a
Chaetognath . . . . . . . . . . . . . . 115
Velma C. Chambers and
Russell S. Weiser Annulate Lamellae in Sarcoma I Cells . . 133
Donald A. Fischman and
Michael D. Gershon A Method for Studying Intracellular
Movement of Water-Soluble Isotopes Prior
to Radioautography . . . . . . . . . . . 139
Marian Peterson and
C. P. Leblond Synthesis of Complex Carbohydrates in
the Golgi Region, As Shown by
Radioautography After Injection of
Labeled Glucose . . . . . . . . . . . . 143
Stanley Samuels and
Nicholas K. Gonatas and
Martin Weiss Chemical and Ultrastructural Comparison
of Synthetic and Pathologic Membrane
System . . . . . . . . . . . . . . . . . 148
C. E. Bracker and
E. E. Butler Function of the Septal Pore Apparatus in
Rhizoctonia Solani During Protoplasmic
Streaming . . . . . . . . . . . . . . . 152
G. Marin and
D. M. Prescott The Frequency of Sister Chromatid
Exchanges Following Exposure to Varying
Doses of H$^3$-Thymidine Or X-Rays . . . 159
Ivan L. Cameron and
Günter Cleffmann Initiation of Mitosis in Relation to the
Cell Cycle Following Feeding of Starved
Chickens . . . . . . . . . . . . . . . . 169
Gunter F. Bahr and
Elmar Zeitler Study of Bull Spermatozoa . . . . . . . 175
Seymour H. Wollman and
Samuel S. Spicer and
Marvin S. Burstone Localization of Esterase and Acid
Phosphatase in Granules and Colloid
Droplets in Rat Thyroid Epithelium . . . 191
T. M. Rizki Mutant Genes Regulating the Inducibility
of Kynurenine Synthesis . . . . . . . . 203
V. G. Allfrey and
V. C. Littau and
A. E. Mirsky Methods for the Purification of Thymus
Nuclei and Their Application to Studies
of Nuclear Protein Synthesis . . . . . . 213
Nancy L. Trotter A Fine Structure Study of Lipid in Mouse
Liver Regenerating After Partial
Hepatectomy . . . . . . . . . . . . . . 233
K. W. Jones and
T. R. Elsdale The Effects of Actinomycin D on the
Ultrastructure of the Nucleus of the
Amphibian Embryonic Cell . . . . . . . . 245
Thomas A. Shalla Assembly and Aggregation of Tobacco
Mosaic Virus in Tomato Leaflets . . . . 253
M. E. Bayer An Electron Microscope Examination of
Urinary Mucoprotein and Its Interaction
with Influenza Virus . . . . . . . . . . 265
G. E. Stone and
D. M. Prescott Cell Division and DNA Synthesis in
\bionameTetrahymena Pyriformis Deprived
of Essential Amino Acids . . . . . . . . 275
Luciano Ozzello Effects of 17-$ \beta $-estradiol and of
growth hormone on the production of acid
mucopolysaccharides by human embryonal
fibroblasts in vitro . . . . . . . . . . 283
J. Herbert Taylor The Arrangement of Chromosomes in the
Mature Sperm of the Grasshopper . . . . 286
Atsushi Suganuma The Plasma Membrane of
\bionameStaphylococcus Aureus Treated
with HCl Solutions . . . . . . . . . . . 290
Werner Straus Occurrence of Phagosomes and
Phago-Lysosomes in Different Segments of
the Nephron in Relation to the
Reabsorption, Transport, Digestion, and
Extrusion of Intravenously Injected
Horseradish Peroxidase . . . . . . . . . 295
Herbert Schuel and
Norman G. Anderson Studies on Isolated Cell Components . . 309
Robert M. Rosenbaum and
Arnold Melman Cytochemical Differences in Kidneys from
Winter-Hibernating and Aroused Bats
(\bionameMyotis Lucifugus), with
Particular Reference to the Golgi Zone 325
Nathan Lane and
Lucien Caro and
Luis R. Otero-Vilardebó and
Gabriel C. Godman On the Site of Sulfation in Colonic
Goblet Cells . . . . . . . . . . . . . . 339
Gabriel C. Godman and
Nathan Lane On the Site of Sulfation in the
Chondrocyte . . . . . . . . . . . . . . 353
Ewald R. Weibel and
Bruce W. Knight A Morphometric Study on the Thickness of
the Pulmonary Air-Blood Barrier . . . . 367
D. Gilmour and
P. M. Robinson Contraction in Glycerinated Myofibrils
of an Insect (Orthoptera, Acrididae) . . 385
Eleanor C. Adams and
Arthur T. Hertig Studies on Guinea Pig Oocytes . . . . . 397
Elliott Robbins and
Nicholas K. Gonatas The Ultrastructure of a Mammalian Cell
During the Mitotic Cycle . . . . . . . . 429
Daniel Szollosi The Structure and Function of Centrioles
and Their Satellites in the Jellyfish
Phialidium Gregarium . . . . . . . . . . 465
Alan S. Cohen and
Evan Calkins The Isolation of Amyloid Fibrils and a
Study of the Effect of Collagenase and
Hyaluronidase . . . . . . . . . . . . . 481
Luis R. Otero-Vilardebó and
Nathan Lane and
Gabriel C. Godman Localization of Phosphatase Activities
in Colonic Goblet and Absorptive Cells 486
Albert I. Farbman Electron Microscope Study of a Small
Cytoplasmic Structure in Rat Oral
Epithelium . . . . . . . . . . . . . . . 491
R. F. Kimball and
D. M. Prescott RNA and Protein Synthesis in
Amacronucleate \bionameParamecium
Aurelia . . . . . . . . . . . . . . . . 496
Werner H. Schreil Studies on the Fixation of Artificial
and Bacterial DNA Plasms for the
Electron Microscopy of Thin Sections . . 1
S. R. Pelc Labelling of DNA and Cell Division in So
Called Non-Dividing Tissues . . . . . . 21
H. Dariush Fahimi and
Chandra Raj Amarasingham Cytochemical Localization of Lactic
Dehydrogenase in White Skeletal Muscle 29
John T. Stasny and
F. L. Crane The Effect of Sonic Oscillation on the
Structure and Function of Beef Heart
Mitochondria . . . . . . . . . . . . . . 49
H. Fernández-Morán and
T. Oda and
P. V. Blair and
D. E. Green A Macromolecular Repeating Unit of
Mitochondrial Structure and Function . . 63
Harold Keiser and
Gerald Weissmann and
Alan W. Bernheimer Studies on Lysosomes . . . . . . . . . . 101
Gerald Weissmann and
Beverly Becher and
Lewis Thomas Studies on Lysosomes . . . . . . . . . . 115
Allen C. Enders and
W. R. Lyons Observations on the Fine Structure of
Lutein Cells . . . . . . . . . . . . . . 127
J. G. Lafontaine and
C. Allard A Light and Electron Microscope Study of
the Morphological Changes Induced in Rat
Liver Cells by the Azo Dye $2$-Me-Dab 143
Albert W. Sedar and
John G. Forte Effects of Calcium Depletion on the
Junctional Complex Between Oxyntic Cells
of Gastric Glands . . . . . . . . . . . 173
Filiberto Giacomelli and
David Spiro and
Joseph Wiener A Study of Metastatic Renal
Calcification at the Cellular Level . . 189
Germaine Cohen-Bazire and
Norbert Pfennig and
Riyo Kunisawa The Fine Structure of Green Bacteria . . 207
Burton Goldberg and
Howard Green An Analysis of Collagen Secretion by
Established Mouse Fibroblast Lines . . . 227
Merrill K. Wolf Differentiation of Neuronal Types and
Synapses in Myelinating Cultures of
Mouse Cerebellum . . . . . . . . . . . . 259
Jacqueline Nonnenmacher-Godet and
Ellsworth C. Dougherty Incorporation of Tritiated Thymidine in
the Cells of \bionameCaenorhabditis
Briggsae (Nematoda) Reared in Axenic
Culture . . . . . . . . . . . . . . . . 281
John F. Jackson Chromosome Aberrations in Cultured Human
Leukocytes Treated with
$8$-Ethoxycaffeine . . . . . . . . . . . 291
Ramsey H. Frist and
Morton D. Maser Freeze-Drying of Biological Specimens
for Electron Microscopy Using
Thermoelectric Cooling . . . . . . . . . 293
Beatríz G. T. Pogo and
A. O. Pogo DNA Dependence of Plastid
Differentiation Inhibition by
Actinomycin D . . . . . . . . . . . . . 296
I. Ohad and
D. Danon On the Dimensions of Cellulose
Microfibrils . . . . . . . . . . . . . . 302
Peter Perlmann and
Jane Couffer-Kaltenbach Antigens in Eggs and Developmental
Stages of the Sea Urchin . . . . . . . . 307
Herbert Schuel and
Samuel R. Tipton and
Norman G. Anderson Studies on Isolated Cell Components . . 317
David P. Bloch and
Sheilah D. Brack Evidence for the cytoplasmic synthesis
of nuclear histone during spermiogenesis
in the grasshopper \bionameChortophaga
viridifasciata (de Geer) . . . . . . . . 327
Joseph Post and
Joseph Hoffman The Replication Time and Pattern of
Carcinogen-Induced Hepatoma Cells . . . 341
J. Ball and
J. A. Chapman and
K. D. Muirden The Uptake of Iron in Rabbit Synovial
Tissue Following Intra-Articular
Injection of Iron Dextran . . . . . . . 351
Russell Ross and
Earl P. Benditt Wound Healing and Collagen Formation . . 365
Heinz Herrmann and
N. W. Klein and
G. Albers In Vitro Culture of Muscle Tissue from
Normal, Heterozygous, and Dystrophic
Chicks . . . . . . . . . . . . . . . . . 391
R. T. Sims The Incorporation and Fate of
H$^3$-Tyrosine in the Hair Cortex of
Rats Observed by Radioautography . . . . 403
Åke Flock Structure of the Macula Utriculi with
Special Reference to Directional
Interplay of Sensory Responses As
Revealed by Morphological Polarization 413
Shimon Klein and
G. Bryan and
Lawrence Bogorad Early Stages in the Development of
Plastid Fine Structure in Red and
Far-Red Light . . . . . . . . . . . . . 433
Shimon Klein and
Lawrence Bogorad Fine Structural Changes in Proplastids
During Photodestruction of Pigments . . 443
Alexander Tomasz and
James D. Jamieson and
Elena Ottolenghi The Fine Structure of Diplococcus
Pneumoniae . . . . . . . . . . . . . . . 453
M. M. Salpeter and
L. Bachmann Autoradiography with the Electron
Microscope . . . . . . . . . . . . . . . 469
Wolf H. Fahrenbach A New Configuration of the Sarcoplasmic
Reticulum . . . . . . . . . . . . . . . 477
Rudolf Weber Ultrastructural Changes in Regressing
Tail Muscles of \bionameXenopus Larvae
at Metamorphosis . . . . . . . . . . . . 481
Lionel I. Rebhun and
Thomas K. Sharpless Isolation of Spindles from the Surf Clam
Spisula Solidissima . . . . . . . . . . 488
G. P. Studzinski and
R. Love Effects of Puromycin on the
Nucleoproteins of the HeLa Cell . . . . 493
D. R. Wolstenholme and
W. Plaut Cytoplasmic DNA Synthesis in Amoeba
Proteus . . . . . . . . . . . . . . . . 505
Sally B. Fand and
Richard P. Spencer Off-Peak Absorption Measurements in
Feulgen Cytophotometry . . . . . . . . . 515
Valerio Monesi Ribonucleic Acid Synthesis During
Mitosis and Meiosis in the Mouse Testis 521
Winifred G. Nayler and
Neil C. R. Merrillees Some Observations on the Fine Structure
and Metabolic Activity of Normal and
Glycerinated Ventricular Muscle of Toad 533
John Tooze Measurements of Some Cellular Changes
During the Fixation of Amphibian
Erythrocytes with Osmium Tetroxide
Solutions . . . . . . . . . . . . . . . 551
Werner R. Loewenstein and
Yoshinobu Kanno Studies on an Epithelial (Gland) Cell
Junction . . . . . . . . . . . . . . . . 565
Joseph Wiener and
David Spiro and
Werner R. Loewenstein Studies on an Epithelial (Gland) Cell
Junction . . . . . . . . . . . . . . . . 587
Richard A. Rifkind and
David Danon and
Paul A. Marks Alterations in Polyribosomes During
Erythroid Cell Maturation . . . . . . . 599
William Perl Correction of Polyribosome Distributions
As Observed in Cell Sections by Electron
Microscopy . . . . . . . . . . . . . . . 613
Marvin L. Tanzer and
Ronald D. Hunt Experimental Lathyrism . . . . . . . . . 623
O. Behnke and
H. Moe An Electron Microscope Study of Mature
and Differentiating Paneth Cells in the
Rat, Especially of Their Endoplasmic
Reticulum and Lysosomes . . . . . . . . 633
Douglas E. Kelly and
Stuart W. Smith Fine Structure of the Pineal Organs of
the Adult Frog, Rana Pipiens . . . . . . 653
Clara Franzini-armstrong and
Keith R. Porter Sarcolemmal Invaginations Constituting
the T System in Fish Muscle Fibers . . . 675
Jerome G. Stempak and
Robert T. Ward An Improved Staining Method for Electron
Microscopy . . . . . . . . . . . . . . . 697
J. D. McNabb and
E. Sandborn Filaments in the Microvillous Border of
Intestinal Cells . . . . . . . . . . . . 701
Robert A. Erlandson A new Maraglas, D.E.R.\reg 732,
embedment for electron microscopy . . . 704
Jerome S. Kaye The Fine Structure of Flagella in
Spermatids of the House Cricket . . . . 710
P. K. Thomas and
H. Sheldon Tubular Arrays Derived from Myelin
Breakdown During Wallerian Degeneration
of Peripheral Nerve . . . . . . . . . . 715
William S. Lynn and
Sydney Fortney and
Rose H. Brown Osmotic and Metabolic Alterations of
Mitochondrial Size . . . . . . . . . . . 1
William S. Lynn and
Sydney Fortney and
Rose H. Brown Role of EDTA and Metals in Mitochondrial
Contraction . . . . . . . . . . . . . . 9
John W. Greenawalt and
Carlo S. Rossi and
Albert L. Lehninger Effect of Active Accumulation of Calcium
and Phosphate Ions on the Structure of
Rat Liver Mitochondria . . . . . . . . . 21
Sasha Koulish and
Ruth G. Kleinfeld The Role of the Nucleolus . . . . . . . 39
T. C. Hsu Mammalian Chromosomes in Vitro . . . . . 53
James R. Coleman and
Montrose J. Moses DNA and the Fine Structure of Synaptic
Chromosomes in the Domestic Rooster
(\bionameGallus Domesticus) . . . . . . 63
Edgar A. Tonna and
Eugene P. Cronkite The Effects of Extraperiosteal
Injections of Blood Components on
Periosteal Cell Proliferation . . . . . 79
Ivan L. Cameron and
Robert E. Smith Cytological Responses of Brown Fat
Tissue in Cold-Exposed Rats . . . . . . 89
Ewald R. Weibel and
George E. Palade New Cytoplasmic Components in Arterial
Endothelia . . . . . . . . . . . . . . . 101
Richard S. Thomas Ultrastructural Localization of Mineral
Matter in Bacterial Spores by
Microincineration . . . . . . . . . . . 113
Patricia Barron Worden and
W. R. Sistrom The Preparation and Properties of
Bacterial Chromatophore Fractions . . . 135
J. D. Jamieson and
G. E. Palade Specific Granules in Atrial Muscle Cells 151
Enrico Mugnaini Helical Filaments in Astrocytic
Mitochondria of the Corpus Striatum in
the Rat . . . . . . . . . . . . . . . . 173
Vivianne T. Nachmias Fibrillar Structures in the Cytoplasm of
Chaos Chaos . . . . . . . . . . . . . . 183
Arya K. Bal and
Paul R. Gross Suppression of Mitosis and Macromolecule
Synthesis in Onion Roots by Heavy Water 188
Mathew J. Nadakavukaren Fine Structure of Negatively Stained
Plant Mitochondria . . . . . . . . . . . 193
Edith Krugelis MacRae Organized Structures in the Nucleolus 195
H. Sheldon and
J. M. McKenzie and
D. Van Nimwegan Electron Microscopic Autoradiography . . 200
Mario H. Burgos and
Agustin Aoki and
Fabio L. Sacerdote Ultrastructure of Isolated Kidney
Mitochondria Treated with Phlorizin and
ATP . . . . . . . . . . . . . . . . . . 207
Morris J. Karnovsky The Localization of Cholinesterase
Activity in Rat Cardiac Muscle by
Electron Microscopy . . . . . . . . . . 217
Lichu Hsu and
A. L. Tappel Lysosomal Enzymes of Rat Intestinal
Mucosa . . . . . . . . . . . . . . . . . 233
Ethel Cosmos Intracellular Distribution of Calcium in
Developing Breast Muscle of Normal and
Dystrophic Chickens . . . . . . . . . . 241
Eugene Copeland A Mitochondrial Pump in the Cells of the
Anal Papillae of Mosquito Larvae . . . . 253
Guy de-Thé Cytoplasmic Microtubules in Different
Animal Cells . . . . . . . . . . . . . . 265
Robert M. Herndon The Fine Structure of the Rat Cerebellum 277
D. James Morré and
Hilton H. Mollenhauer Isolation of the Golgi Apparatus from
Plant Cells . . . . . . . . . . . . . . 295
Jack Rosenbluth and
Steven L. Wissig The Distribution of Exogenous Ferritin
in Toad Spinal Ganglia and the Mechanism
of Its Uptake by Neurons . . . . . . . . 307
F. B. P. Wooding and
D. H. Northcote The Development of the Secondary Wall of
the Xylem in \bionameAcer Pseudoplatanus 327
Fernando L. Renaud and
Hewson Swift The Development of Basal Bodies and
Flagella in Allomyces Arbusculus . . . . 339
Mortimer Litt Studies in Experimental Eosinophilia . . 355
John F. Hartmann Cytochemical Localization of Adenosine
Triphosphatase in the Mitotic Apparatus
of HeLa and Sarcoma 180 Tissue Culture
Cells . . . . . . . . . . . . . . . . . 363
Nancy Sype Simpson and
Robert Gilmore McKinnell The Burnsi Gene As a Nuclear Marker for
Transplantation Experiments in Frogs . . 371
P. K. Thomas The Deposition of Collagen in Relation
to Schwann Cell Basement Membrane During
Peripheral Nerve Regeneration . . . . . 375
Hisao Fujita and
Mitsuo Machino Fine Structure of Intramitochondrial
Crystals in Rat Thyroid Follicular Cell 383
Maimon M. Cohen and
Margery W. Shaw Effects of Mitomycin C on Human
Chromosomes . . . . . . . . . . . . . . 386
Robert E. Lee and
Joseph D. Feldman Visualization of Antigenic Sites of
Human Erythrocytes with
Ferritin-Antibody Conjugates . . . . . . 396
Albert I. Lansing Age Variations in Cortical Membranes of
Rotifers . . . . . . . . . . . . . . . . 403
C. C. Das and
B. P. Kaufmann and
Helen Gay Histone Protein Transition in
\bionameDrosophila Melanogaster . . . . 423
S. R. Bawa Electron Microscope Study of
Spermiogenesis in a Fire-Brat Insect,
Thermobia Domestica Pack . . . . . . . . 431
Dorothy F. Travis and
Melvin J. Glimcher The Structure and Organization Of, and
the Relationship Between the Organic
Matrix and the Inorganic Crystals of
Embryonic Bovine Enamel . . . . . . . . 447
M. Weintraub and
H. W. J. Ragetli An Electron Microscope Study of Tobacco
Mosaic Virus Lesions in
\bionameNicotiana Glutinosa L . . . . . 499
Susumu Kishimoto and
Irving Lieberman A Nuclear Membrane Change After Partial
Hepatectomy . . . . . . . . . . . . . . 511
Fritz Miller and
George E. Palade Lytic Activities in Renal Protein
Absorption Droplets . . . . . . . . . . 519
M. M. Dewey and
L. Barr A Study of the Structure and
Distribution of the Nexus . . . . . . . 553
Jeanne L. Stove Poindexter and
Germaine Cohen-Bazire The Fine Structure of Stalked Bacteria
Belonging to the Family Caulobacteraceae 587
Jane Baxandall and
P. Perlmann and
B. A. Afzelius Immuno-Electron Microscope Analysis of
the Surface Layers of the Unfertilised
Sea Urchin Egg . . . . . . . . . . . . . 609
Jane Baxandall and
P. Perlmann and
B. A. Afzelius Immuno-Electron Microscope Analysis of
the Surface Layers of the Unfertilised
Sea Urchin Egg . . . . . . . . . . . . . 629
Arnold J. Petersen DNA Synthesis and Chromosomal Asynchrony 651
O. L. Miller and
G. E. Stone and
D. M. Prescott Autoradiography of Soluble Materials . . 654
John McD. Tormey Differences in Membrane Configuration
Between Osmium Tetroxide-Fixed and
Glutaraldehyde-Fixed Ciliary Epithelium 658
N. J. Berrill and
H. Sheldon The Fine Structure of the Connections
Between Muscle Cells in Ascidian Tadpole
Larva . . . . . . . . . . . . . . . . . 664
William A. Jensen Observations on the Fusion of Nuclei in
Plants . . . . . . . . . . . . . . . . . 669