| | Opinion |  |
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| | Are Graduate Students Worth Keeping ? 985
doi:10.1038/225985a0
PDF (279K)
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| | 100 Years Ago 986
doi:10.1038/225986a0
PDF (165K)
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| | Old World | |
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| | Computer Policy: Mintech Under Fire Again 986
doi:10.1038/225986b0
PDF (293K)
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| | Satellites: Aquiver to Join the Space Club 987
doi:10.1038/225987a0
PDF (133K)
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| | Rabies: End to Compromise 987
doi:10.1038/225987b0
PDF (259K)
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| | Universities: Teaching of Physics 988
doi:10.1038/225988a0
PDF (132K)
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| | Universities: Revamping the Vets 988
doi:10.1038/225988b0
PDF (254K)
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| | Independent University: �15 Million to Launch 989
Our Education Correspondent
doi:10.1038/225989a0
PDF (127K)
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| | Mathematics: Differentials in Low Gear 989
doi:10.1038/225989b0
PDF (127K)
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| | Information: Literature Taped 989
doi:10.1038/225989c0
PDF (255K)
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| | Pollution: Why Lead gets into Petrol 990
doi:10.1038/225990a0
PDF (133K)
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| | Parliament in Britain 991
doi:10.1038/225991a0
PDF (127K)
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| | Miscellaneous Intelligence 991
doi:10.1038/225991b0
PDF (127K)
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| | New World | |
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| | Keeping Plowshare Alive 992
doi:10.1038/225992a0
PDF (235K)
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| | Stretch Out for NASA 994
doi:10.1038/225994a0
PDF (133K)
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| | Space Strategy: Almost a Blank Cheque 995
doi:10.1038/225995a0
PDF (155K)
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| | Planets: Mars Progress Report 995
doi:10.1038/225995b0
PDF (271K)
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| | Grand Tour: Planetary Billiards Approved 996
doi:10.1038/225996a0
PDF (121K)
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| | Medical Research: Good Fairy for the NIH 996
doi:10.1038/225996b0
PDF (248K)
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| | Education: New Plans for Students 997
doi:10.1038/225997a0
PDF (133K)
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| | Eclipse: Observations Galore 997
doi:10.1038/225997b0
PDF (260K)
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| | College Administration: Scientists as Presidents 998
doi:10.1038/225998a0
PDF (133K)
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| | Young Scientists: More Scholarships for Precocity 998
doi:10.1038/225998b0
PDF (133K)
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| | News and Views |  |
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| | Towards Hybrid Plant Cells 999
doi:10.1038/225999a0
PDF (111K)
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| | Starts, Stops and Anti-stops 999
doi:10.1038/225999b0
PDF (233K)
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| | Galaxies: Ejected Clouds in Milky Way 1000
Our Cosmology Correspondent
doi:10.1038/2251000a0
PDF (129K)
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| | Nuclear Magnetic Resonance: In the Crystal Ball 1000
Our Molecular Biology Correspondent
doi:10.1038/2251000b0
PDF (246K)
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| | Chemical Synthesis: New Cyclization Reactions 1001
Our Organic Chemistry Correspondent
doi:10.1038/2251001a0
PDF (123K)
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| | Mössbauer Effect: Liquid Crystals Join the Club 1001
doi:10.1038/2251001b0
PDF (250K)
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| | Extra-Optical Astronomy: X-ray and Microwave Progress 1002
Our Cosmology Correspondent
doi:10.1038/2251002a0
PDF (132K)
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| | Carbon Fibres: Fine Structures in Ribbons 1002
Our Materials Science Correspondent
doi:10.1038/2251002b0
PDF (132K)
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| | Palaeomagnetism: Another Transition Zone 1003
Our Geomagnetism Correspondent
doi:10.1038/2251003a0
PDF (112K)
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| | Plasmas: Instabilities in the Solar Wind 1003
Our Magnetosphere Correspondent
doi:10.1038/2251003b0
PDF (112K)
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| | Solid State: Electroluminescent Devices 1004
A Correspondent
doi:10.1038/2251004a0
PDF (128K)
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| | Pollution: Teach-in at Edinburgh 1004
A Correspondent
doi:10.1038/2251004b0
PDF (128K)
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| | Articles |  |
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| | Value of Curiosity-oriented Research 1005
M. GIBBONS, J. R. GREER, F. R. JEVONS, J. LANGRISH & D. S. WATKINS
doi:10.1038/2251005a0
Abstract & References | PDF (237K)
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| | Imperfections of Elasticity and Continental Drift 1007
HAROLD JEFFREYS
doi:10.1038/2251007a0
Abstract & References | PDF (235K)
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| | Some Needs of Geophysics 1008
Harold Jeffreys
doi:10.1038/2251008a0
PDF (122K)
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| | Positive Control of Transcription by a Bacteriophage Sigma Factor 1009
ANDREW A. TRAVERS
doi:10.1038/2251009a0
Abstract & References | PDF (463K)
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| | Involvement of a Phage T4  Factor and an Anti-terminator Protein in the Transcription of Early T4 Genes in vivo
1012
D. A. SCHMIDT, A. J. MAZAITIS, T. KASAI & E. K. F. BAUTZ
doi:10.1038/2251012a0
Abstract & References | PDF (573K)
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| | Fusion of Isolated Plant Protoplasts 1016
J. B. POWER, S. E. CUMMINS & E. C. COCKING
doi:10.1038/2251016a0
Abstract & References | PDF (565K)
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| | Ethylene, the Natural Regulator of Leaf Abscission 1019
MICHAEL B. JACKSON & DAPHNE J. OSBORNE
doi:10.1038/2251019a0
Abstract & References | PDF (375K)
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| | Effects of Actinomycin D and Cycloheximide on RNA and Protein Synthesis in Cleavage Stage Mouse Embryos 1022
RICHARD J. TASCA & NINA HILLMAN
doi:10.1038/2251022a0
Abstract & References | PDF (427K)
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| | Non-Darwinian Evolution: A Critique 1025
ROLLIN C. RICHMOND
doi:10.1038/2251025a0
Abstract & References | PDF (516K)
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| | Carbon Compounds in Apollo 11 Lunar Samples 1028
BARTHOLOMEW NAGY, WARD M. SCOTT, VINCENT MODZELESKI, LOIS ANNE NAGY, CHARLES M. DREW, WILLIAM S. MCEWAN, JOSEPH E. THOMAS, PAUL B. HAMILTON & HAROLD C. UREY
doi:10.1038/2251028a0
Abstract & References | PDF (844K)
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| | Letters | |
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| | Statistical Methods in Scientific Inference 1033
ALLAN BIRNBAUM
doi:10.1038/2251033a0
First paragraph & References | PDF (127K)
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| | Redshifts of Companion Galaxies 1033
HALTON ARP
doi:10.1038/2251033b0
First paragraph & References | PDF (347K)
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| | Low-frequency Spectrum of the Crab Nebula 1035
A. H. BRIDLE
doi:10.1038/2251035a0
First paragraph & References | PDF (371K)
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| | Anomalous Rhenium Isotopic Ratio in the Solar Wind: Detection at the Nanogram Level 1037
J. W. MORGAN
doi:10.1038/2251037a0
First paragraph & References | PDF (289K)
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| | Longitudinal Structure in the Plasmapause: VLF Goniometer Observations of Knee-whistlers 1038
K. BULLOUGH & J. L. SAGREDO
doi:10.1038/2251038a0
First paragraph & References | PDF (250K)
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| | Strength−Modulus Relation for Carbonized Acrylic Fibres 1039
D. J. THORNE
doi:10.1038/2251039a0
First paragraph & References | PDF (203K)
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| | Five-fold Pseudosymmetry 1040
B. G. BAGLEY
doi:10.1038/2251040a0
First paragraph & References | PDF (233K)
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| | Effect of Phosphate and Non-phosphate Buffers on Thermolability of Unstable Haemoglobins 1041
LAWRENCE J. SCHNEIDERMAN, IRENE G. JUNGA & DOROTHEA E. FAWLEY
doi:10.1038/2251041a0
First paragraph & References | PDF (236K)
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| | High Resolution Nuclear Magnetic Resonance Studies of Haemoglobin J Capetown 1042
S. OGAWA, R. G. SHULMAN, P. A. M. KYNOCH & H. LEHMANN
doi:10.1038/2251042a0
First paragraph & References | PDF (218K)
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| | Exchange of Bound Tritium between DNA and Water at Different Temperatures 1043
ROBERT E. BIRD, KARL G. LARK, BASIL CURNUTTE & JOHN E. MAXFIELD
doi:10.1038/2251043a0
First paragraph & References | PDF (336K)
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| | Interaction between Papova-like Virus and Paramyxovirus in Human Brain Cells: a Hypothesis 1045
HILARY KOPROWSKI, GIUSEPPE BARBANTI-BRODANO & MICHAEL KATZ
doi:10.1038/2251045a0
First paragraph & References | PDF (589K)
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| | Surface Leukaemic Antigen and Malignancy of Cells in Mice infected with Mazurenko Virus 1047
V. E. GURTSEVICH, N. P. MAZURENKO, E. I. JAROVA, N. A. PROBATOVA & G. N. STEPANOVA
doi:10.1038/2251047a0
First paragraph & References | PDF (294K)
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| | Leucine Naphthylamide: an Appropriate Substrate for the Histochemical Detection of Cathepsins B and B' 1048
J. KEN MCDONALD, BENJAMIN B. ZEITMAN & STANLEY ELLIS
doi:10.1038/2251048a0
First paragraph & References | PDF (264K)
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| | Histochemistry of some Lysosomal "Proteolytic" Enzymes of Human Rheumatoid Synovia 1050
J. CHAYEN, LUCILLE BITENSKY & L. W. POULTER
doi:10.1038/2251050a0
First paragraph & References | PDF (299K)
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| | Morphogenetic Substratum for Differentiation of Cartilage in Tissue Culture 1051
MARSHALL R. URIST & HIROSHI NOGAMI
doi:10.1038/2251051a0
First paragraph & References | PDF (327K)
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| | Uniquely Oriented Epidermal Lipid 1052
LOWELL A. GOLDSMITH & HOWARD P. BADEN
doi:10.1038/2251052a0
First paragraph & References | PDF (328K)
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| | Myosin Filaments in Vertebrate Smooth Muscle 1053
J. LOWY, F. R. POULSEN & P. J. VIBERT
doi:10.1038/2251053a0
First paragraph & References | PDF (472K)
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| | Platelet Adhesion in Rabbit Arteries observed by Scanning and Transmission Electron Microscopy 1054
B. L. SHEPPARD & J. E. FRENCH
doi:10.1038/2251054a0
First paragraph & References | PDF (312K)
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| | Inhibition by Bile Salts of the Jejunal Transport of 3-O-Methyl Glucose 1055
CLAUDE C. ROY, REUBEN S. DUBOIS & FERNAND PHILIPPON
doi:10.1038/2251055a0
First paragraph & References | PDF (253K)
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| | Parathyroid Hormone Secretion in vitro: Regulation by Calcium and Magnesium Ions 1056
LOUIS M. SHERWOOD, INGEBORG HERRMAN & C. ANDREW BASSETT
doi:10.1038/2251056a0
First paragraph & References | PDF (335K)
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| | Complexes between Acetylcholine and Catecholamines and their Tolerance to Mental Illness 1058
LAURO GALZIGNA
doi:10.1038/2251058a0
First paragraph & References | PDF (252K)
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| | Changes in Enzymes involved in the Biosynthesis and Metabolism of Noradrenaline and Adrenaline after Psychosocial Stimulation 1059
JULIUS AXELROD, ROBERT A. MUELLER, JAMES P. HENRY & PATRICIA M. STEPHENS
doi:10.1038/2251059a0
First paragraph & References | PDF (265K)
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| | Direct Postsynaptic Responses to Stimulation of Serotonin-containing Neurones 1060
G. A. COTTRELL
doi:10.1038/2251060a0
First paragraph & References | PDF (368K)
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| | Acute Toxicity of Aflatoxin B1in Wethers 1062
BERNARD H. ARMBRECHT, WILLIAM T. SHALKOP, LARRY D. ROLLINS, ALBERT E. POHLAND & LEONARD STOLOFF
doi:10.1038/2251062a0
First paragraph & References | PDF (272K)
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| | Vertebrate Fauna from the Lower Trias of Australia 1063
ALAN BARTHOLOMAI & ANNE HOWIE
doi:10.1038/2251063a0
First paragraph & References | PDF (149K)
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| | Sperm Transfer by Spermatophores in Glossina austeni Newstead 1063
J. N. POLLOCK
doi:10.1038/2251063b0
First paragraph & References | PDF (297K)
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| | Courtship Behaviour of some Drosophila melanogaster Mutants 1064
S. CROSSLEY & E. ZUILL
doi:10.1038/2251064a0
First paragraph & References | PDF (270K)
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| | Brassins—a New Family of Plant Hormones from Rape Pollen 1065
J. W. MITCHELL, N. MANDAVA, J. F. WORLEY, J. R. PLIMMER & M. V. SMITH
doi:10.1038/2251065a0
First paragraph & References | PDF (254K)
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| | Localization of Antigens associated with the Pollen Grain Wall by Immunofluorescence 1066
R. B. KNOX, J. HESLOP-HARRISON & C. REED
doi:10.1038/2251066a0
First paragraph & References | PDF (416K)
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| |
Hydramoeba hydroxena (Entz) discovered on Hydra graysoni sp. nov. 1068
THOMAS R. A. MAXWELL
doi:10.1038/2251068a0
First paragraph & References | PDF (132K)
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| | Umbellulidae Distribution extended in the Atlantic 1068
W. JAHN
doi:10.1038/2251068b0
First paragraph & References | PDF (232K)
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| | Isotopic Evidence for Diminishing Supply of Available Carbon during Diatom Bloom in the Black Sea 1069
W. G. DEUSER
doi:10.1038/2251069a0
First paragraph & References | PDF (347K)
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| | Volatile Factor in Soil Fungistasis 1071
T. S. HORA & RALPH BAKER
doi:10.1038/2251071a0
First paragraph & References | PDF (192K)
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| |
L-Amino-acid Oxidase, a Bactericidal System 1072
ROBERT C. SKARNES
doi:10.1038/2251072a0
First paragraph & References | PDF (182K)
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| | Altered Cell Walls of Staphylococcus aureus resistant to Methicillin 1074
L. D. SABATH, C. D. LEAF, D. A. GERSTEIN & M. FINLAND
doi:10.1038/2251074a0
First paragraph & References | PDF (126K)
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| | Book Reviews |  |
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| | Whither the British Landscape? 1075
R. J. S. HOOKWAY reviews New Lives, New Landscapes
By
Nan Fairbrother
doi:10.1038/2251075a0
PDF (127K)
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| | Choice in Education 1075
JOHN VAIZEY reviews Decision Models for Educational Planning
By
Peter Armitage, Cyril Smith & Paul Alper
doi:10.1038/2251075b0
PDF (259K)
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|
| | Education Manifesto 1076
COLIN NORMAN reviews Education for Democracy
Edited By
David Rubinstein & Colin Stoneman
doi:10.1038/2251076a0
PDF (136K)
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| | Boyle's Life 1076
A. J. TURNER reviews The Life of the Honourable Robert Boyle, F.R.S.
By
R. E. W. Maddison
doi:10.1038/2251076b0
PDF (266K)
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| | Solvent Chemistry 1077
S. R. C. HUGHES reviews Non-Aqueous Solvents
By
T. C. Waddington
doi:10.1038/2251077a0
PDF (134K)
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|
| | Modular Forms 1077
A. O. L. ATKIN reviews Modular Forms and Dirichlet Series
By
Andrew Ogg
doi:10.1038/2251077b0
PDF (134K)
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| | Mathematical Logic 1077
R. M. DICKER reviews Mathematical Logic and Hilbert's  -Symbol
By
A. C. Leisenring
doi:10.1038/2251077c0
PDF (134K)
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| | Plant Anatomy 1078
D. H. VALENTINE reviews Anatomy of the Monocotyledons
Vol. 3: Commelinales−Zingiberales. By
P. B. Tomlinson and
Vol. 4: Juncales. By
D. F. Cutler
doi:10.1038/2251078a0
PDF (138K)
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| | Greenfingers in America 1078
PHYLLIS I. EDWARDS reviews A Short History of Botany in the United States
Edited by
Joseph Ewan
doi:10.1038/2251078b0
PDF (138K)
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| | Australian Geology 1078
J. SHIRLEY reviews Stratigraphy and Palaeontology
Essays in Honour of Dorothy Hill. Edited by
K. S. W. Campbell
doi:10.1038/2251078c0
PDF (282K)
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| | Comparative Zoology 1079
R. P. DALES reviews Principles of Comparative Anatomy of Invertebrates
By
W. N. Beklemishev & Z. Kabata
doi:10.1038/2251079a0
References | PDF (306K)
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|
| | Stumptail Behaviour 1080
Y. SPENCER-BOOTH reviews The Behavioral Repertoire of the Stumptail Macaque
A Descriptive and Comparative Study. By
Mireille Bertrand
doi:10.1038/2251080a0
PDF (163K)
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|
| | Obituary | |
|
| | Earl Russell 1080
doi:10.1038/2251080b0
PDF (293K)
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| | Correspondence | |
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| | Can a Scientific Article be Libellous? 1081
JOHN R. LEWIS, JOHN S. GRAY, LELAND W. POLLOCK & P. GEOFFREY MOORE
doi:10.1038/2251081a0
PDF (136K)
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| | Should Slides be Seen Blind ? 1081
F. J. C. ROE, R. L. CARTER, E. COTCHIN & G. M. BONSER
doi:10.1038/2251081b0
PDF (247K)
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| | Understanding Media 1082
R. A. BEATTY
doi:10.1038/2251082a0
PDF (116K)
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| | Capacity for Misunderstanding 1082
J. W. WARREN
doi:10.1038/2251082b0
PDF (116K)
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| | Appointments | |
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| | Appointments 1082
doi:10.1038/2251082c0
PDF (118K)
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| | Announcements | |
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| | Announcements 1082
doi:10.1038/2251082d0
PDF (235K)
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| | Erratum | |
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| | Erratum 1083
doi:10.1038/2251083a0
PDF (123K)
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| | British Diary | |
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| | British Diary 1083
doi:10.1038/2251083b0
PDF (269K)
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| | Reports and Publications | |
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| | Reports and Publications 1084
doi:10.1038/2251084a0
PDF (153K)
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