| | Opinion |  |
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| | This Way to Nowhere 1
doi:10.1038/221001a0
PDF (118K)
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| | Flying in Different Directions 2
doi:10.1038/221002a0
PDF (112K)
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| | Engineers a Cubit Higher 2
doi:10.1038/221002b0
PDF (237K)
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| | News | |
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| | Euratom: Community with Nine Lives 3
doi:10.1038/221003a0
PDF (129K)
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| | Physical Standards: New Volts for Old 3
doi:10.1038/221003b0
PDF (259K)
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| | Metrication: One Swallow for Summer 4
doi:10.1038/221004a0
PDF (134K)
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| | Honours: Scientists Honoured 4
doi:10.1038/221004b0
PDF (134K)
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| | Selenology: Album of the Moon 4
Our Astronomy Correspondent
doi:10.1038/221004c0
PDF (285K)
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| | Rocketry: Rocker for Apollo 8 5
doi:10.1038/221005a0
PDF (303K)
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| | Astronomy: Ammonia Line Detected 6
Our Astronomy Correspondent
doi:10.1038/221006a0
PDF (152K)
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| | Raw Materials: Sweet Sense 6
doi:10.1038/221006b0
PDF (305K)
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| | Acoustics: Banishing the Echoes 7
doi:10.1038/221007a0
PDF (286K)
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| | Space: ELDO through the Looking Glass 8
doi:10.1038/221008a0
PDF (134K)
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| | Geophysics: Alaska feels the Freeze 8
doi:10.1038/221008b0
PDF (134K)
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| | Transplants: Moving Donors 9
Our Social Medicine Correspondent
doi:10.1038/221009a0
PDF (129K)
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| | Management: Support with Strings 9
doi:10.1038/221009b0
PDF (129K)
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| | Education: More for Educational Research 9
doi:10.1038/221009c0
PDF (131K)
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| | Trees: Colourful Street Trees 10
doi:10.1038/221010a0
PDF (132K)
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| | Science and Society: Problems of Responsibility 10
A Correspondent
doi:10.1038/221010b0
PDF (133K)
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| | Indian Medical Research Reviewed 11
doi:10.1038/221011a0
PDF (242K)
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| | Training for Storage and Retrieval 12
doi:10.1038/221012a0
PDF (122K)
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| | News and Views |  |
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| | RNA Crystals 13
doi:10.1038/221013a0
PDF (107K)
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| | Protein Structure: Mechanism of Enzyme Action 13
A Correspondent
doi:10.1038/221013b0
PDF (238K)
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| | Solar System: The Endless Roundabout 14
A Correspondent
doi:10.1038/221014a0
PDF (266K)
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| | Palaeontology: Patterns in Evolution 15
A Correspondent
doi:10.1038/221015a0
PDF (134K)
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| | Insect Defences: Handling Dangerous Chemicals 15
Our Entomology Correspondent
doi:10.1038/221015b0
PDF (264K)
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| | Microbiology: Bacteria resist Heat 16
Our Microbiology Correspondent
doi:10.1038/221016a0
PDF (135K)
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| | Microbiology: Numerical Classification 16
Our Microbiology Correspondent
doi:10.1038/221016b0
PDF (252K)
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| | Quantum Mechanics: Calculating Bounds for Overlap 17
A Correspondent
doi:10.1038/221017a0
References | PDF (123K)
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| | Articles |  |
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| | University Training of Applied Botanists in Germany, Holland and Sweden 18
D. G. MORGAN
doi:10.1038/221018a0
PDF (460K)
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| | Polar Mutations and Operon Function 21
DAVID ZIPSER
doi:10.1038/221021a0
Abstract & References | PDF (528K)
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| | Rotating Neutron Stars and the Nature of Pulsars 25
THOMAS GOLD
doi:10.1038/221025a0
Abstract & References | PDF (318K)
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| | Changing Periodicities in the Pulsars 27
J. G. DAVIES, G. C. HUNT & F. G. SMITH
doi:10.1038/221027a0
Abstract & References | PDF (265K)
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| | Stability of Pulsar Periods 29
T. W. COLE
doi:10.1038/221029a0
Abstract & References | PDF (251K)
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| | Pulsar Amplitude Variations 31
E. E. SALPETER
doi:10.1038/221031a0
Abstract & References | PDF (330K)
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| | Chemical Composition of Nuclei of Z > 22 in Cosmic Rays using Meteoritic Minerals as Detectors 33
D. LAL, R. S. RAJAN & A. S. TAMHANE
doi:10.1038/221033a0
Abstract & References | PDF (601K)
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| | Protection of Peptides of Biological Origin for Use as Intermediates in the Chemical Synthesis of Proteins 37
R. E. OFFORD
doi:10.1038/221037a0
Abstract & References | PDF (489K)
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| | Gene Duplication and Nucleotide Substitution in Evolution 40
MASATOSHI NEI
doi:10.1038/221040a0
Abstract & References | PDF (375K)
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| | Factor Stimulating Transcription by RNA Polymerase 43
RICHARD R. BURGESS, ANDREW A. TRAVERS, JOHN J. DUNN & EKKEHARD K. F. BAUTZ
doi:10.1038/221043a0
Abstract & References | PDF (506K)
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| | Letters | |
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| | Clustering of Pulsars along the Galactic Plane 47
R. WIELEBINSKI, A. E. VAUGHAN & M. I. LARGE
doi:10.1038/221047a0
First paragraph & References | PDF (108K)
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| | Detectability of Lunar Libration Clouds at Small Phase Angles 47
VLADIMIR VANYSEK
doi:10.1038/221047b0
First paragraph & References | PDF (236K)
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| | Globular Clusters in the Andromeda Nebula 48
SIDNEY VAN DEN BERGH
doi:10.1038/221048a0
First paragraph & References | PDF (248K)
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| | New Method for the Combustion of Samples for Radiocarbon Dating 49
HAROLD BARKER, RICHARD BURLEIGH & NIGEL MEEKS
doi:10.1038/221049a0
First paragraph & References | PDF (215K)
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| | Pair Distribution Function for a Two-dimensional Liquid 50
R. J. BELL
doi:10.1038/221050a0
First paragraph & References | PDF (188K)
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| | Determination of Carbon Fibre Structure by Electron Spin Resonance 51
D. ROBSON, F. Y. I. ASSABGHY, D. J. E. INGRAM & P. G. ROSE
doi:10.1038/221051a0
First paragraph & References | PDF (237K)
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| | Polarization Structure of Interfacial Amorphous Films 52
G. I. DISTLER & L. A. SHENYAVSKAYA
doi:10.1038/221052a0
First paragraph & References | PDF (302K)
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| | Proximity Effect in Catalysed Systems: a Dramatic Effect on Ester Hydrolysis 53
J. R. KNOWLES & CAROL A. PARSONS
doi:10.1038/221053a0
First paragraph & References | PDF (281K)
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| | Determination of Absolute Configurations from Anomalous Scattering by Oxygen 54
H. HOPE & U. DE LA CAMP
doi:10.1038/221054a0
First paragraph & References | PDF (258K)
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| | Some Aspects of a Fluidized Zinc/Oxygen Electrode System 55
J. R. BACKHURST, E. GOODRIDGE, R. E. PLIMLEY & M. FLEISCHMANN
doi:10.1038/221055a0
First paragraph & References | PDF (362K)
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| | Reconstitution Mechanisms in the Radiolysis of Aqueous Biochemical Systems: Inhibitive Effects of Thiols 57
JOHN HOLIAN & WARREN M. GARRISON
doi:10.1038/221057a0
First paragraph & References | PDF (110K)
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| | Arrangement of the Helical Regions in E. coli Tyrosine tRNA 58
B. P. DOCTOR, W. FULLER & N. L. WEBB
doi:10.1038/221058a0
First paragraph & References | PDF (285K)
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| | Isolation and Characterization of a Toxin from the Florida Red Tide Organism 59
DEAN F. MARTIN & ASHIM B. CHATTERJEE
doi:10.1038/221059a0
First paragraph & References | PDF (135K)
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| | Geographical Variation in Fallow Deer (Dama dama L.) 59
D. I. CHAPMAN & NORMA G. CHAPMAN
doi:10.1038/221059b0
PDF (260K)
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| | Manipulating the Photoperiod to damage Insects 60
W. N. SULLIVAN, B. M. CAWLEY, MARIA OLIVER, D. K. HAYES & J. U. MCGUIRE
doi:10.1038/221060a0
First paragraph & References | PDF (220K)
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| | Abscisic Acid and Morphogenesis in Lemna polyrhiza L. 61
G. R. STEWART
doi:10.1038/221061a0
First paragraph & References | PDF (210K)
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| | Induction by Ultraviolet Irradiation of Mutation in the Blue–Green Alga Nostoc linckia (Roth) Born. et Flah. 62
R. N. SINGH & D. N. TIWARI
doi:10.1038/221062a0
First paragraph & References | PDF (398K)
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| | Selective Control of Annual Grassy Weeds in Transplanted Tropical Rice with  -2,2,2-Trichloroethyl Styrene 64
S. K. DE DATTA, R. T. BANTILAN & J. K. PARK
doi:10.1038/221064a0
First paragraph & References | PDF (307K)
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| | Pleiotropic Effects of Albinism on Open Field Behaviour in Mice 65
J. C. DEFRIES
doi:10.1038/221065a0
First paragraph & References | PDF (310K)
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| | Genetics of Albumin Gainesville, a New Variant of Human Serum Albumin 66
THOMAS LAU, F. WILLIAM SUNDERMAN JUN., SHYAM S. AGARWAL, ALTON I. SUTNICK & BARUCH S. BLUMBERG
doi:10.1038/221066a0
First paragraph & References | PDF (307K)
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| | Microbial Mutagenicity of Streptozotocin in Animal-mediated Assays 68
M. G. GABRIDGE, A. DENUNZIO & M. S. LEGATOR
doi:10.1038/221068a0
First paragraph & References | PDF (505K)
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| | Paternal versus Maternal Inactivation in the X Chromosome of Female Mice 70
ANN C. CHANDLEY
doi:10.1038/221070a0
First paragraph & References | PDF (242K)
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| | Banded Polytene Chromosomes in the Legume Phaseolus vulgaris
70
W. NAGL
doi:10.1038/221070b0
First paragraph & References | PDF (401K)
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| | Changes in Chromatin Structure during Interphase in Human Normoblasts 71
G. R. MILNER
doi:10.1038/221071a0
First paragraph & References | PDF (327K)
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| | Mice reared with Rat Aunts: Effects on Plasma Corticosterone and Open Field Activity 73
VICTOR H. DENENBERG, KENNETH M. ROSENBERG, RICHARD PASCHKE & M. X. ZARROW
doi:10.1038/221073a0
First paragraph & References | PDF (253K)
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| |
In vitro Production of Chromosomal Lesions with an Argon Laser Microbeam 74
MICHAEL W. BERNS, ROBERT S. OLSON & DONALD E. ROUNDS
doi:10.1038/221074a0
First paragraph & References | PDF (311K)
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| | Importances of Polar Groups for initiating Blood Coagulation and aggregating Platelets 75
H. L. NOSSEL, G. D. WILNER & E. C. LEROY
doi:10.1038/221075a0
First paragraph & References | PDF (302K)
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| | Effect of Phytohaemagglutinin on Plaque Forming Cells in the Mouse Spleen 76
GY Z PETRANYI JUN., GYÖRGY JÁNOSSY & PÁL ALFÖLDY
doi:10.1038/221076a0
First paragraph & References | PDF (334K)
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| | Physicochemical Characteristics of Rubella Antigens Theta and Iota 78
GEORGE L. LE BOUVIER
doi:10.1038/221078a0
First paragraph & References | PDF (225K)
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| | Inhibition of Phagocytosis by Anti-macrophage Antibodies 79
JOHN F. JENNINGS & LYNDA A. HUGHES
doi:10.1038/221079a0
First paragraph & References | PDF (227K)
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| | Tumour Nodule Formation as an in vivo Measure of the Suppression of Cellular Immune Response by Antilymphocytic Serum 80
E. J. STANBRIDGE & F. T. PERKINS
doi:10.1038/221080a0
First paragraph & References | PDF (297K)
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| | Comparative Study of the Rh-D Antibody Titres of Amniotic Fluids and Corresponding Maternal Sera in Rh-D Sensitized Pregnancies 82
MAGDALENA USATEGUI-GOMEZ & SUSAN STEARNS
doi:10.1038/221082a0
First paragraph & References | PDF (226K)
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| | Production of Hydrogen by Green Photosynthetic Bacteria (Chloropseudomonas) 83
E. N. KONDRATIEVA & I. N. GOGOTOV
doi:10.1038/221083a0
First paragraph & References | PDF (205K)
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| | Human Intolerance to Bacteria as Food 84
CAROL I. WASLIEN, DORIS HOWES CALLOWAY & SHELDON MARGEN
doi:10.1038/221084a0
First paragraph & References | PDF (220K)
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| | Sensitivity of L132 Cells to Some "New" Respiratory Viruses 85
A. F. BRADBURNE
doi:10.1038/221085a0
First paragraph & References | PDF (284K)
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| | Occurrence and Determination of Inositol in the Oviducts of Turkey and Hen 86
C. J. G. VAN DER HORST & J. B. LITJENS
doi:10.1038/221086a0
First paragraph & References | PDF (259K)
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| | Effect of Protamine Sulphate and Environmental Temperature on Mouse Sarcoma 180 87
E. M. GLASER & J. P. AUSTIN
doi:10.1038/221087a0
First paragraph & References | PDF (214K)
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| | Anti-uterotrophic Response of Immature Mice to 3-Methylcholanthrene 89
W. C. NEWMAN & RICHARD C. MOON
doi:10.1038/221089a0
First paragraph & References | PDF (114K)
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| | Short Half-times of Caesium-137 in Pregnant Women 89
WAYNE S. ZUNDEL, FRANK H. TYLER, CHARLES W. MAYS, RAY D. LLOYD, WILLIAM W. WAGNER & ROBERT C. PENDLETON
doi:10.1038/221089b0
First paragraph & References | PDF (230K)
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| | Individual Variations in Rate of Skeletal Maturation 91
W. A. MARSHALL
doi:10.1038/221091a0
First paragraph & References | PDF (129K)
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| | Effects of Sodium Cyclamate on the Growth of Rats compared with other Variations in the Diet 91
L. M. DALDERUP & W. VISSER
doi:10.1038/221091b0
First paragraph & References | PDF (245K)
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| | Identification of Plasma Angiotensinase as Aminopeptidase 92
A. B. KURTZ & E. D. WACHSMUTH
doi:10.1038/221092a0
First paragraph & References | PDF (239K)
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| | Circadian Periodicity of Blood Amino-acids in Normal and Adrenalectomized Mice 94
RALPH D. FEIGIN, HARRY G. DANGERFIELD & WILLIAM R. BEISEL
doi:10.1038/221094a0
First paragraph & References | PDF (267K)
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| | Non-random Variability in Evolution of Base Compositions of Ribosomal RNA 95
FRANCESCO AMALDI
doi:10.1038/221095a0
First paragraph & References | PDF (207K)
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| | Quantitative Variation of 6-Phosphogluconate Dehydrogenase in an African Population 96
H. GORDON, M. M. KERAAN, VIVIENNE WOODBURNE & EUNICE SOPHANGISA
doi:10.1038/221096a0
First paragraph & References | PDF (205K)
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| | Numerical Classification Method for deriving Natural Classes 97
DAVID WISHART
doi:10.1038/221097a0
First paragraph & References | PDF (258K)
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| | Book Reviews |  |
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| | Cures For Human Violence 99
V. REYNOLDS reviews Violence, Monkeys and Man
By
Claire Russell & W. M. S. Russell
doi:10.1038/221099a0
PDF (116K)
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| | Tribute To A Great Doctor 100
ARTHUR MACNALTY reviews Herman Boerhaave
The Man and his Work. By
G. A. Lindeboom
doi:10.1038/221100a0
PDF (140K)
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| | Hunting Man 100
JANE M. RENFREW reviews Prehistoric Animals and their Hunters
By
I. W. Cornwall
doi:10.1038/221100b0
PDF (274K)
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| | Matters For Argument 101
J. D. CARTHY reviews Bird Navigation
By
G. V. T. Matthews
doi:10.1038/221101a0
PDF (138K)
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| | Comparative Zoology 101
JOHN A. PATTERSON reviews Lower Animals
By
Martin Wells
doi:10.1038/221101b0
PDF (138K)
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| | Russian Cancer Research 102
R. J. C. HARRIS reviews The Virology and Immunology of Cancer
By
L. A. Zilber & G. I. Abelev
doi:10.1038/221102a0
PDF (131K)
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| | Protein Chemistry 102
BRIAN S. HARTLEY reviews The Primary Structure of Proteins
Principles and Practice for the Determination of Amino-acid Sequence. By
Walter A. Schroeder
doi:10.1038/221102b0
PDF (131K)
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| | Neurosciences Research 102
LESLIE L. IVERSEN reviews Neurosciences Research
Vol. 1. By
S. Ehrenpreis & Othmar C. Solnitzky
doi:10.1038/221102c0
PDF (265K)
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| | Plant Tissue Culture 103
G. G. HENSHAW reviews Plant Tissue Culture and Plant Morphogenesis
By
R. G. Butenko
doi:10.1038/221103a0
PDF (138K)
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| | Tropical Soils 103
G. A. WORRALL reviews Introduction to the Study of Soils in Tropical and Sub-tropical Regions
By
P. Buringh
doi:10.1038/221103b0
PDF (138K)
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| | Birth of a Science 104
L. ROSENFELD reviews Franklin and Newton
An Inquiry into Speculative Newtonian Experimental Science and Franklin's Work in Electricity as an Example Thereof. By
Bernard I. Cohen
doi:10.1038/221104a0
PDF (140K)
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| | Specialist Physics 104
S. DEVONS reviews The Theory of Neutron Resonance Reactions
By
J. E. Lynn
doi:10.1038/221104b0
PDF (140K)
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| | Obituary | |
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| | Obituaries 105
R. L. Usinger
doi:10.1038/221105a0
PDF (133K)
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| | Correspondence | |
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| | New Constitution for British Physicists 105
M. BLACKMAN
doi:10.1038/221105b0
PDF (133K)
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| | Who Wants to be a Scientist? 106
C. A. MAWSON
doi:10.1038/221106a0
PDF (122K)
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| | Risk of an Astrodemic 106
SOLOMON GARB
doi:10.1038/221106b0
PDF (122K)
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| | [Correspondence] 106
doi:10.1038/221106c0
PDF (248K)
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| | Erratum 106
doi:10.1038/221106d0
PDF (122K)
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| | British Diary | |
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| | British Diary 107
doi:10.1038/221107a0
PDF (128K)
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| | Reports and other Publications | |
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| | Reports and other Publications 107
doi:10.1038/221107b0
PDF (456K)
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