| | Opinion |  |
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| | Nuclear Energy in Europe 211
doi:10.1038/232211a0
PDF (341K)
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| | Making Policy Explicit 212
doi:10.1038/232212a0
PDF (220K)
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| | 100 Years Ago 212
doi:10.1038/232212b0
PDF (219K)
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| | Old World | |
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| | ESRO: Decisions in Principle 213
A Correspondent
doi:10.1038/232213a0
PDF (128K)
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| | MRC: More Revelations 213
doi:10.1038/232213b0
PDF (248K)
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| | Computers: Hungary Looks Ahead 213
doi:10.1038/232213c0
PDF (128K)
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| | Scientists' Pay: Protest Meeting 214
doi:10.1038/232214a0
PDF (125K)
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| | Minerals: Mixed Blessings 214
doi:10.1038/232214b0
PDF (251K)
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| | Education: Curriculum Analysis 215
doi:10.1038/232215a0
PDF (132K)
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| | Glasshouse Crops: Laboratories Opened 215
A Correspondent
doi:10.1038/232215b0
PDF (132K)
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| | Nuffield Foundation: Sponsoring Innovation 215
doi:10.1038/232215c0
PDF (132K)
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| | New World | |
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| | Agricultural Chemicals Fall Foul of Nader's Raiders 216
Our Washington Correspondent
doi:10.1038/232216a0
PDF (251K)
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| | McElroy Leaves NSF 216
Our Washington Correspondent
doi:10.1038/232216b0
PDF (117K)
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| | NASA: FAS Opposes Shuttle 217
Our Washington Correspondent
doi:10.1038/232217a0
PDF (269K)
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| | Herbicides: 2,4,5-T Report Attacked 218
Our Washington Correspondent
doi:10.1038/232218a0
PDF (134K)
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| | Short Note 218
Our Washington Correspondent
doi:10.1038/232218b0
PDF (134K)
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| | News and Views |  |
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| | A Wise Cell which Knows its Parent 219
doi:10.1038/232219a0
PDF (261K)
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| | Interstellar Molecules: OH in Radio Galaxies 220
A Correspondent
doi:10.1038/232220a0
PDF (261K)
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| | Selective Antitumour Virus Drugs 220
doi:10.1038/232220b0
PDF (133K)
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| | Virology: Links and Rings 221
Our Cell Biology Correspondent
doi:10.1038/232221a0
PDF (133K)
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| | Towards the Genetics of Hormone Action 221
doi:10.1038/232221b0
PDF (133K)
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| | Environment: Mercury Levels 222
Our Photosynthesis Correspondent
doi:10.1038/232222a0
PDF (137K)
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| | Creep of Ice at Low Stresses 222
doi:10.1038/232222b0
PDF (137K)
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| | Pollution: Canadian Conference 223
doi:10.1038/232223a0
PDF (136K)
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| | Excess Cosmic X-rays May Come from Carbon 223
doi:10.1038/232223b0
PDF (136K)
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| | Earth's Atmosphere: CO2 versus Aerosols 224
Our Geomagnetism Correspondent
doi:10.1038/232224a0
PDF (268K)
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| | Contact Inhibition and Ribosome Metabolism 224
doi:10.1038/232224b0
PDF (136K)
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| | Parasites: Behaviour of Insects 225
doi:10.1038/232225a0
PDF (266K)
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| | DNA Duplication in Vitro
225
doi:10.1038/232225b0
PDF (137K)
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| | Nucleic Acids: New Exchange Rates 226
Our Molecular Biology Correspondent
doi:10.1038/232226a0
PDF (135K)
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| | Superheavy Elements 226
doi:10.1038/232226b0
PDF (135K)
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| | Articles |  |
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| | Science Policy in the Developing Nations 227
R. S. BHATHAL
doi:10.1038/232227a0
Abstract & References | PDF (531K)
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| | "Self-recognition" in Colonial Marine Forms and Flowering Plants in relation to the Evolution of Immunity 230
F. M. BURNET
doi:10.1038/232230a0
Abstract & References | PDF (764K)
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| | Quantitative Determination of Mononucleotide Conformations in Solution using Lanthanide Ion Shift and Broadening NMR Probes 236
C. D. BARRY, A. C. T. NORTH, J. A. GLASEL, R. J. P. WILLIAMS & A. V. XAVIER
doi:10.1038/232236a0
Abstract & References | PDF (603K)
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| | Letters | |
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| | Physical Sciences: Detection of Radio Emission from Cygnus X-1 246
L. L. E. BRAES & G. K. MILEY
doi:10.1038/232246a0
First paragraph & References | PDF (106K)
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| | Variation of the Strong and Electromagnetic Coupling Constants over Cosmological Times 246
B. BROULIK & J. S. TREFIL
doi:10.1038/232246b0
First paragraph & References | PDF (200K)
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| | Production of Proton-rich Nuclei 247
H. L. DUORAH
doi:10.1038/232247a0
First paragraph & References | PDF (201K)
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| | Magnetospheric Electric Fields and the Super-rotation of the Earth's Upper Atmosphere 248
H. VOLLAND
doi:10.1038/232248a0
First paragraph & References | PDF (218K)
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| | Lunar Electrical Conductivity Profile 249
A. F. KUCKES
doi:10.1038/232249a0
First paragraph & References | PDF (347K)
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| | Convection and the Constant Q-Mechanism 251
PAUL S. WESSON
doi:10.1038/232251a0
First paragraph & References | PDF (244K)
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| | Occurrence and Geological Significance of Layered Stratiform Intrusion in the Yilgarn Block, Western Australia 252
J. J. HOCKLEY
doi:10.1038/232252a0
First paragraph & References | PDF (219K)
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| | Estimation of Nuclear Explosion Energies from Microbarograph Records 253
JOE W. POSEY & ALLAN D. PIERCE
doi:10.1038/232253a0
First paragraph & References | PDF (103K)
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| | Biological Sciences: RNA-dependent DNA Polymerase from E. coli: an Effect produced by Traces of Added DNA 254
LIEBE F. CAVALIERI & ELIZABETH CARROLL
doi:10.1038/232254a0
First paragraph & References | PDF (224K)
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| | Interactive Computer Display for the Three Dimensional Study of Macromolecular Structures 255
EDGAR F. MEYER JUN.
doi:10.1038/232255a0
First paragraph & References | PDF (338K)
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| | Thermoluminescence of Biological Materials 257
C. CHRISTODOULIDES & J. H. FREMLIN
doi:10.1038/232257a0
First paragraph & References | PDF (219K)
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| | Cannabis Alkaloids 258
FREDERICK K. KLEIN, HENRY RAPOPORT & HENRY W. ELLIOTT
doi:10.1038/232258a0
First paragraph & References | PDF (216K)
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| | Sex Pheromone Mimics of the American Cockroach 259
WILLIAM S. BOWERS & WILLIAM G. BODENSTEIN
doi:10.1038/232259a0
First paragraph & References | PDF (305K)
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| | Sex Pheromone in the Lobster, Homarus americanus
261
JELLE ATEMA & DAVID G. ENGSTROM
doi:10.1038/232261a0
First paragraph & References | PDF (495K)
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| | Inhibition of Nematocyst Discharge correlated with Feeding in a Sea Anemone, Calliactis tricolor (Leseur) 263
DONNA M. SANDBERG, PAUL KANCIRUK & RICHARD N. MARISCAL
doi:10.1038/232263a0
First paragraph & References | PDF (211K)
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| |
In vitro Cytocidal Effect of L-Glutaminase on Leukaemic Lymphocytes 265
ROBERT SCHREK, JOHN S. HOLCENBERG, JOSEPH ROBERTS & WILLIAM C. DOLOWY
doi:10.1038/232265a0
First paragraph & References | PDF (112K)
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| | Inequality of Inspired and Expired Gaseous Nitrogen in Man 265
L. T. DUDKA, H. J. INGLIS, R. E. JOHNSON, J. M. PECHINSKI & SHARON PLOWMAN
doi:10.1038/232265b0
First paragraph & References | PDF (454K)
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| | Patterns of Regeneration between Individual Nerve Cells in the Central Nervous System of the Leech 268
D. A. BAYLOR & J. G. NICHOLLS
doi:10.1038/232268a0
First paragraph & References | PDF (432K)
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| | Use of Two Cerebral Hemispheres to increase Brain Capacity 270
STUART DIMOND & GRAHAM BEAUMONT
doi:10.1038/232270a0
First paragraph & References | PDF (193K)
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| | Chromosome Abnormalities in Severe Protein Calorie Malnutrition 271
SALVADOR ARMENDARES, FABIO SALAMANCA & SILVESTRE FRENK
doi:10.1038/232271a0
First paragraph & References | PDF (284K)
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| | Yawning and Penile Erection induced in Rats by Cortical Spreading Depression 274
JOSEPH HUSTON
doi:10.1038/232274a0
First paragraph & References | PDF (299K)
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| | Monosodium Glutamate induces Convulsive Disorders in Rats 275
H. N. BHAGAVAN, D. B. COURSIN & C. N. STEWART
doi:10.1038/232275a0
First paragraph & References | PDF (220K)
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| | Handedness not a Function of Birth Order 276
JOHN I. HUBBARD
doi:10.1038/232276a0
First paragraph & References | PDF (230K)
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| | Excess of Like Sexed Pairs of Dizygotic Twins 277
W. H. JAMES
doi:10.1038/232277a0
First paragraph & References | PDF (235K)
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| | Supernatural Beliefs among Graduate Students at the University of Pennsylvania 278
CHARLES A. SALTER & LEWIS M. ROUTLEDGE
doi:10.1038/232278a0
First paragraph & References | PDF (335K)
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| | Vascularization of Skin Grafts 279
PETER B. LAMBERT
doi:10.1038/232279a0
First paragraph & References | PDF (540K)
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| | Book Reviews |  |
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| | Pakistan Geology 281
J. M. DORREEN reviews Stratigraphic Boundary Problems:
Permian and Triassic of West Pakistan. Edited by
Bernhard Kummel & Curt Teichert
doi:10.1038/232281a0
PDF (120K)
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| | Victorian Attitudes 281
P. G. WERSKEY reviews Victorian Science: a Self-Portrait from the Presidential Addresses of the British Association for the Advancement of Science
Edited by
George Basalla, William Coleman, Robert H. Kargon & Christine Bolt
doi:10.1038/232281b0
PDF (252K)
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| | Raman Spectroscopy 282
P. HENDRA reviews Raman Spectroscopy:
Theory and Practice, Vol. 2. Edited by
Herman A. Szymanski
doi:10.1038/232282a0
PDF (137K)
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| | Organic Electrochemistry 282
A. BEWICK reviews Electrochemical Reactions in Nonaqueous Systems
By
Charles K. Mann & Karen K. Barnes
doi:10.1038/232282b0
PDF (269K)
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| | Useful Mathematics 283
A. T. DAVIES reviews Low Energy Hadron Interactions: Invited Papers Presented at the Ruhestein Meeting, May 1970
doi:10.1038/232283a0
PDF (137K)
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| | Ancient and Modern 283
CHARLES NEWMAN reviews Modern Methods in the History of Medicine
Edited by
Edwin Clarke
doi:10.1038/232283b0
PDF (265K)
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| | Palaeopopulation 284
DON BROTHWELL reviews History of Human Life Span and Mortality
By
Gy. Acsádi & J. Nemeskéri
doi:10.1038/232284a0
PDF (133K)
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| | No Room for Mus
284
J. L. STAFFORD reviews The Haemostatic Mechanism in Man and Other Animals
Edited by
R. G. Macfarlane
doi:10.1038/232284b0
PDF (133K)
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| | Correspondence | |
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| | Scientific Salaries 285
NIGEL BATEMAN
doi:10.1038/232285a0
PDF (121K)
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| | BNF Subscriptions 285
E. C. MANTLE
doi:10.1038/232285b0
PDF (121K)
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| | Acknowledgments 285
HAROLD FOX
doi:10.1038/232285c0
PDF (121K)
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| | Neolithic Spondylus
285
S. MOSHKOVITZ
doi:10.1038/232285d0
References | PDF (233K)
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| | Announcements | |
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| | Announcements 286
doi:10.1038/232286a0
PDF (117K)
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| | Erratum | |
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| | Erratum 286
doi:10.1038/232286b0
PDF (117K)
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| | British Diary | |
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| | British Diary 286
doi:10.1038/232286c0
PDF (117K)
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| | Reports and Publications | |
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| | Reports and publications 286
doi:10.1038/232286d0
PDF (115K)
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