| | Opinion |  |
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| | Living with Catastrophe 793
doi:10.1038/228793a0
PDF (209K)
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| | Biology in the Dock 794
doi:10.1038/228794a0
PDF (393K)
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| | 100 Years Ago 795
doi:10.1038/228795a0
PDF (304K)
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| | Old World | |
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| | LUNA-17: Lunokhod's Scientific Repertoire 795
Our Soviet Correspondent
doi:10.1038/228795b0
PDF (427K)
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| | European Science: Makings of a New Structure 796
doi:10.1038/228796a0
PDF (128K)
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| | Nuclear Energy: Consolidation in ENEA 796
doi:10.1038/228796b0
PDF (254K)
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| | Loch Morar: Elusive Monster 797
doi:10.1038/228797a0
PDF (132K)
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| | Conservation: Council's Fortunes Improve 797
doi:10.1038/228797b0
PDF (250K)
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| | Medical Education: New School for Leicester 798
doi:10.1038/228798a0
PDF (124K)
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| | Graduate Employment: Reversed Trends 798
doi:10.1038/228798b0
PDF (124K)
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| | Students: NUS in the Public Eye 799
doi:10.1038/228799a0
PDF (130K)
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| | Pollution: Aware of the Danger 799
doi:10.1038/228799b0
PDF (130K)
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| | Entrepreneurs: How to exploit Ideas 799
doi:10.1038/228799c0
PDF (252K)
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| | Industrial Research: Good Year 800
doi:10.1038/228800a0
PDF (127K)
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| | Parliament in Britain 800
doi:10.1038/228800b0
PDF (127K)
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| | New World | |
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| | Lean Years Ahead for Physicists 801
Our Washington Correspondent
doi:10.1038/228801a0
PDF (248K)
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| | Good Time to be a Geophysicist 802
doi:10.1038/228802a0
PDF (125K)
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| | Biological Warfare: Relief of Fort Detrick 803
Our Washington Correspondent
doi:10.1038/228803a0
PDF (135K)
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| | Pollution: Clean Air Code for New York 803
Our New York Correspondent
doi:10.1038/228803b0
PDF (259K)
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| | Software: Software in the Museum 804
Our New York Correspondent
doi:10.1038/228804a0
PDF (130K)
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| | News and Views |  |
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| | The Genes they are a Changing 805
doi:10.1038/228805a0
PDF (241K)
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| | Bacteriophage: A cis-Acting Protein 806
Our Cell Biology Correspondent
doi:10.1038/228806a0
PDF (132K)
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| | Haemoglobin: The Truth about Haemoglobin 806
Our Molecular Biology Correspondent
doi:10.1038/228806b0
PDF (260K)
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| | Ribosomes: Attachment of Proteins 807
Our Nucleic Acids Correspondent
doi:10.1038/228807a0
PDF (133K)
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| | Contraceptives: Pill Progress 807
Our Biological Chemistry Correspondent
doi:10.1038/228807b0
PDF (250K)
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| | Animal Behaviour: Discriminating Sticklebacks 808
Our Marine Vertebrate Correspondent
doi:10.1038/228808a0
PDF (123K)
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| | Archaeology: Origins of Farming 808
A Correspondent
doi:10.1038/228808b0
PDF (257K)
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| | Crystallography: Uracil Photodimer Stereochemistry 809
Our Biomolecular Structure Correspondent
doi:10.1038/228809a0
PDF (264K)
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| | Materials: No Substitute for Wood 810
A Correspondent
doi:10.1038/228810a0
PDF (129K)
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| | Carboniferous: Did Ice split Gondwanaland ? 810
Our Geomagnetism Correspondent
doi:10.1038/228810b0
PDF (261K)
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| | Continental Drift: Grand Reconstruction 811
Our Geomagnetism Correspondent
doi:10.1038/228811a0
PDF (257K)
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| | Asteroids: Survey of Faint Minor Planets 812
Our Cosmology Correspondent
doi:10.1038/228812a0
PDF (125K)
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| | Atomic Beams: Laser to separate Isotopes 812
Our Solid State Physics Correspondent
doi:10.1038/228812b0
PDF (125K)
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| | Articles |  |
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| | University Development in the 1970s 813
A. B. PIPPARD, E. W. PARKES, A. D. I. NICOL & W. A. DEER
doi:10.1038/228813a0
Abstract & References | PDF (369K)
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| | Control of Chemical Pollutants 816
SAMUEL S. EPSTEIN
doi:10.1038/228816a0
Abstract & References | PDF (516K)
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| | Enzyme Evolution: Generation of a Bifunctional Enzyme by Fusion of Adjacent Genes 820
JOSEPH YOURNO, TADAHIKO KOHNO & JOHN R. ROTH
doi:10.1038/228820a0
Abstract & References | PDF (984K)
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| | Effect of Cell Surface Antigen Density on Immunological Enhancement 824
WILLIAM D. LINSCOTT
doi:10.1038/228824a0
Abstract & References | PDF (495K)
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| | Function of Dislocations in Cell Walls and Membranes 827
W. F. HARRIS & L. E. SCRIVEN
doi:10.1038/228827a0
Abstract & References | PDF (364K)
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| | Permanent Longitudinal Electric Polarization and Pyroelectric Behaviour of Collagenous Structures and Nervous Tissue in Man and other Vertebrates 830
HERBERT ATHENSTAEDT
doi:10.1038/228830a0
Abstract & References | PDF (1,447K)
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| | Preliminary Study of the North of England Earthquake of August 9, 1970 835
G. R. J. BROWNING & A. W. B. JACOB
doi:10.1038/228835a0
Abstract & References | PDF (237K)
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| | Ultramafics and Orogeny, with Models of the US Cordillera and the Tethys 837
ELDRIDGE MOORES
doi:10.1038/228837a0
Abstract & References | PDF (671K)
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| | Letters | |
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| | Physical Sciences: Origin of the Diffuse Interstellar Band at 4430 Å 843
W. A. RUNCIMAN
doi:10.1038/228843a0
First paragraph & References | PDF (118K)
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| | Origin of the Iron Bands in Supernovae Spectra 844
P. G. MANNING
doi:10.1038/228844a0
First paragraph & References | PDF (234K)
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| | Can the Cosmological Constant stabilize Galaxy Clusters ? 845
PETER D. NOERDLINGER
doi:10.1038/228845a0
First paragraph & References | PDF (131K)
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| | Possible Method for determining the Planck Constant of Cosmic Photons 845
M. HARWIT
doi:10.1038/228845b0
First paragraph & References | PDF (387K)
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| | Spectrum of the Extra-galactic Background Radiation at Low Radio Frequencies 847
T. A. CLARK, L. W. BROWN & J. K. ALEXANDER
doi:10.1038/228847a0
First paragraph & References | PDF (352K)
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| | Centrifugal Force and General Relativity 849
JEFFREY M. COHEN & WILLIAM J. SARILL
doi:10.1038/228849a0
First paragraph & References | PDF (128K)
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| | Velocity Measurements in the Deep Western Boundary Current of the South Pacific 849
BRUCE A. WARREN & ARTHUR D. VOORHIS
doi:10.1038/228849b0
First paragraph & References | PDF (264K)
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| | Nepheline Gabbro from the Mid-Atlantic Ridge 850
JOSÉ HONNOREZ & ENRICO BONATTI
doi:10.1038/228850a0
First paragraph & References | PDF (750K)
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| | Seismic Waves reflected from the Earth's Inner Core 852
E. R. ENGDAHL, EDWARD A. FLINN & CARL F. ROMNEY
doi:10.1038/228852a0
First paragraph & References | PDF (205K)
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| | Energy Content of Covington's Lightning Ball 853
P. D. ZIMMERMAN
doi:10.1038/228853a0
First paragraph & References | PDF (113K)
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| | Formation of Two-dimensional Organic Polymers on a Mineral Surface 853
B. K. G. THENK
doi:10.1038/228853b0
First paragraph & References | PDF (759K)
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| | Biological Sciences: The Short Lived Small Lymphocyte as a Mediator of Cellular Immunity 855
D. D. MCGREGOR, F. T. KOSTER & G. B. MACKANESS
doi:10.1038/228855a0
First paragraph & References | PDF (257K)
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| | Hong Kong A-2 Influenza Virus Infection among Swine during a Human Epidemic in Taiwan 857
W. D. KUNDIN
doi:10.1038/228857a0
First paragraph & References | PDF (130K)
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| | Replication of Murine and Feline RNA-containing C-type Viruses in Human Lymphoblastoid Cells 857
BERGE HAMPAR, GARY J. KELLOFF, LIDIA M. MARTOS, STEPHEN OROSZLAN, RAYMOND V. GILDEN & JOHN L. WALKER
doi:10.1038/228857b0
First paragraph & References | PDF (652K)
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| | Inhibition of Viral Multiplication by Chemically Methylated DNA from the Host Cells 859
G. BECK, J. P. EBEL, P. LOUISOT, J. GRESLE, M. B. PRADAL & L. COLOBERT
doi:10.1038/228859a0
First paragraph & References | PDF (332K)
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| | Electron-transparent Zone of Mycobacteria may be a Defence Mechanism 860
P. DRAPER & R. J. W. REES
doi:10.1038/228860a0
First paragraph & References | PDF (447K)
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| | Induction of Tyrosine Hydroxylase in Peripheral and Central Adrenergic Neurones by Cold-exposure of Rats 861
H. THOENEN
doi:10.1038/228861a0
First paragraph & References | PDF (359K)
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| | Collateral Nerve Sprouts produced Experimentally 862
T. H. WILLIAMS & JEAN JEW
doi:10.1038/228862a0
First paragraph & References | PDF (855K)
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| | Effects of Calcium on ACTH Stimulation of the Adrenal: Separation of Hormone Binding from Adenyl Cyclase Activation 864
ROBERT J. LEFKOWITZ, JESSE ROTH & IRA PASTAN
doi:10.1038/228864a0
First paragraph & References | PDF (594K)
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| | Identification of 5 -Androstane-3, 17 -diol as a Principal Metabolite of Pregnenolone in Rat Ovary at Onset of Puberty 866
BENJAMIN ECKSTEIN, RAPHAEL MECHOULAM & SUMNER H. BURSTEIN
doi:10.1038/228866a0
First paragraph & References | PDF (339K)
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| | Similar Functions of Uric Acid and Ascorbate in Man ? 868
PETER PROCTOR
doi:10.1038/228868a0
First paragraph & References | PDF (120K)
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| | Hetero-electrogenesis of the Gustatory Cell Membrane in Rat 868
MASAHIRO OZEKI
doi:10.1038/228868b0
First paragraph & References | PDF (209K)
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| | Behaviour of Differentiated Hen Nuclei in the Cytoplasm of Rat Myoblasts and Myotubes 869
S.-A. CARLSSON, R. E. SAVAGE & N. R. RINGERTZ
doi:10.1038/228869a0
First paragraph & References | PDF (835K)
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| | Croton Oil Induced Suppression of the Immune Response of Guinea-pigs 871
HARRY G. BLUESTEIN & IRA GREEN
doi:10.1038/228871a0
First paragraph & References | PDF (314K)
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| | Function of the Spermaceti Organ of the Sperm Whale 873
MALCOLM R. CLARKE
doi:10.1038/228873a0
First paragraph & References | PDF (246K)
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| | Irish and French Fresh Water Populations of Gammarus duebeni subspecifically Different from Brackish Water Populations 874
J. H. STOCK & S. PINKSTER
doi:10.1038/228874a0
First paragraph & References | PDF (253K)
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| | Experimental Populations of Gammarus duebeni in Fresh Water with a Low Sodium Content 875
D. W. SUTCLIFFE
doi:10.1038/228875a0
First paragraph & References | PDF (243K)
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| | Pupation Inhibiting Factor in the Larva of the Blowfly Calliphora erythrocephala
876
G. M. PRICE
doi:10.1038/228876a0
First paragraph & References | PDF (217K)
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| | Mistranslation and Ageing in Neurospora
877
C. M. LEWIS & R. HOLLIDAY
doi:10.1038/228877a0
First paragraph & References | PDF (556K)
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| | Megagametophyte containing Twin Ova 880
T. E. DEVINE & J. L. STARLING
doi:10.1038/228880a0
First paragraph & References | PDF (239K)
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| | Effect of Ambient Carbon Dioxide Concentration on the Rate of Transpiration of Agave americana in the Dark 880
T. F. NEALES
doi:10.1038/228880b0
First paragraph & References | PDF (473K)
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| | Improved Impregnation Technique for the Preservation of Stone Statuary 882
K. LAL GAURI
doi:10.1038/228882a0
First paragraph & References | PDF (127K)
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| | Book Reviews |  |
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| | Schneirla's Influence 883
N. TINBERGEN reviews Development and Evolution of Behavior
Essays in Memory of T. C. Schneirla. Edited by
Lester R. Aronson, Ethel Tobach, Daniel S. Lehrman & Jay S. Rosenblatt
doi:10.1038/228883a0
PDF (129K)
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| | Primate Life 883
VERNON REYNOLDS reviews Social Groups of Monkeys, Apes and Men
By
Michael R. A. Chance & Clifford J. Jolly
doi:10.1038/228883b0
References | PDF (262K)
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|
| | Bird Biology 884
J. C. COULSON reviews The Life and Organisation of Birds
By
W. B. Yapp
doi:10.1038/228884a0
PDF (139K)
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| | Parasites and Parasitism 885
BEN DAWES reviews Platyhelminthes and Parasitism
An Introduction to Parasitology. By
D. R. R. Burt
doi:10.1038/228885a0
PDF (137K)
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|
| | Gonadal Hormones 885
DONALD EXLEY reviews The Gonads
Edited By
K. W. McKerns
doi:10.1038/228885b0
PDF (137K)
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| | Island Volcanoes 885
J. R. V. BROOKS reviews Volcanism and the Upper Mantle
Investigations in the Kurile Island Arc. By
Georgii S. Gorshkov
doi:10.1038/228885c0
PDF (263K)
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| | Organotin Chemistry 886
A. J. BLOODWORTH reviews The Chemistry of Organotin Compounds
By
R. C. Poller
doi:10.1038/228886a0
PDF (131K)
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| | Graphite Research 886
HARRY MARSH reviews Modern Aspects of Graphite Technology
Edited by
L. C. F. Blackman
doi:10.1038/228886b0
PDF (131K)
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| | Tool for Metallurgists 886
D. W. BASSETT reviews Field-Ion Microscopy
By
K. M. Bowkett & D. A. Smith
doi:10.1038/228886c0
PDF (262K)
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| | Radiation Belt Physics 887
PETER J. SMITH reviews Dynamics of Geomagnetically Trapped Radiation
By
J. G. Roederer
doi:10.1038/228887a0
PDF (137K)
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|
| | Short Notices 887
doi:10.1038/228887b0
PDF (137K)
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|
| | Correspondence | |
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| | Reprint Communication 888
WILLIAM KRUSKAL & I. RICHARD SAVAGE
doi:10.1038/228888a0
PDF (112K)
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| | Scientific Responsibility 888
S. V. VAECK
doi:10.1038/228888b0
PDF (112K)
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| | Accelerating Somatic Cell Genetics 888
A. W. F. EDWARDS
doi:10.1038/228888c0
PDF (112K)
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| | Definition of Molecular Weight 888
JOHN T. EDSALL
doi:10.1038/228888d0
References | PDF (238K)
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| | Another Review Journal 889
G. B. SHORTER
doi:10.1038/228889a0
PDF (131K)
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| | Hunting Down Pornography 889
J. F. FONCIN
doi:10.1038/228889b0
PDF (131K)
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|
| | Obituary | |
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| | Dr Hans Kronberger 890
doi:10.1038/228890a0
PDF (116K)
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| | Announcements | |
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| | Announcements 890
doi:10.1038/228890b0
PDF (234K)
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| | Erratum | |
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| | Erratum 891
doi:10.1038/228891a0
PDF (124K)
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| | British Diary | |
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| | British Diary 891
doi:10.1038/228891b0
PDF (124K)
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| | Reports and Publications | |
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| | Reports and Publications 892
doi:10.1038/228892a0
PDF (137K)
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