| | Opinion |  |
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| | Almost a Good Bargain 419
doi:10.1038/216419a0
PDF (112K)
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| | Who Should Keep the Books? 419
doi:10.1038/216419b0
PDF (374K)
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| | News | |
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| | Bloomsbury Cinderella 421
doi:10.1038/216421a0
PDF (134K)
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| | Money for Dons 421
doi:10.1038/216421b0
PDF (263K)
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| | Money for Schools 422
doi:10.1038/216422a0
PDF (133K)
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| | Science for Primary Schools 422
doi:10.1038/216422b0
PDF (133K)
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| | Causes of Death 422
doi:10.1038/216422c0
PDF (265K)
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| | Less Discrimination 423
doi:10.1038/216423a0
PDF (135K)
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| | Heat and Sound 423
doi:10.1038/216423b0
PDF (135K)
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| | Flashing Lights 423
doi:10.1038/216423c0
PDF (266K)
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| | Nuclear Reactions 424
doi:10.1038/216424a0
PDF (135K)
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| | Striking a Balance 424
doi:10.1038/216424b0
PDF (265K)
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| | Traffic in Towns 425
doi:10.1038/216425a0
PDF (134K)
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| | Kind Words for Concrete 425
doi:10.1038/216425b0
PDF (134K)
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| | Fewer Locusts 425
doi:10.1038/216425c0
PDF (263K)
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| | Australian Fisheries 426
doi:10.1038/216426a0
PDF (133K)
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| | Parliament in Britain 426
doi:10.1038/216426b0
PDF (133K)
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| | News and Views |  |
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| | Artificial Intelligence 427
doi:10.1038/216427a0
PDF (121K)
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| | Variable X-ray Star 427
doi:10.1038/216427b0
PDF (121K)
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| | More News from Venus 427
doi:10.1038/216427c0
PDF (255K)
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| | Automatic Pipettes 428
doi:10.1038/216428a0
PDF (137K)
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| | Russian View of Phylogeny 428
Mary Lindley
doi:10.1038/216428b0
PDF (263K)
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| | Commonwealth Veterinary Association 429
A Correspondent
doi:10.1038/216429a0
PDF (130K)
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| | New Place for Plants 429
A Correspondent
doi:10.1038/216429b0
PDF (130K)
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| | Localization of Enzymes 429
Our Cell Biology Correspondent
doi:10.1038/216429c0
PDF (263K)
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| | Plant Virus in Vectors 430
Our Microbiology Correspondent
doi:10.1038/216430a0
PDF (137K)
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| | Hydroxyproline in Cell Walls 430
A Correspondent in Cell Biology
doi:10.1038/216430b0
PDF (268K)
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| | Sulphur in RNA 431
Our Molecular Biology Correspondent
doi:10.1038/216431a0
PDF (135K)
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| | They Wobble 431
Our Cell Biology Correspondent
doi:10.1038/216431b0
PDF (300K)
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| | Articles |  |
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| | Theoretical Astronomy at Cambridge 432
F. L. WESTWATER
doi:10.1038/216432a0
PDF (353K)
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| | Technology in Scotland 433
NIGEL HAWKES
doi:10.1038/216433a0
PDF (292K)
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| | Underwater Vision of the Sea Otter 435
R. L. GENTRY & R. S. PETERSON
doi:10.1038/216435a0
Abstract & References | PDF (207K)
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| | Geomagnetic Reversals and Pleistocene Chronology 437
B. GLASS, D. B. ERICSON, B. C. HEEZEN, N. D. OPDYKE & J. A. GLASS
doi:10.1038/216437a0
Abstract & References | PDF (631K)
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| | Plutonium-244 in the Early Solar System and Concordant Plutonium/Xenon and Iodine/Xenon Decay Intervals of Achondrites 442
D. D. SABU & P. K. KURODA
doi:10.1038/216442a0
Abstract & References | PDF (452K)
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| | Latent Viruses in Chimpanzees with Experimental Kuru 446
NANCY G. ROGERS, M. BASNIGHT, C. J. GIBBS jun. & D. C. GAJDUSEK
doi:10.1038/216446a0
Abstract & References | PDF (469K)
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| | Stimulation of Biosynthesis of Glyceride 449
G. HÜBSCHER, D. N. BRINDLEY, M. E. SMITH & B. SEDGWICK
doi:10.1038/216449a0
Abstract & References | PDF (621K)
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| | Model for Origin of Monosaccharides 453
NORMAN W. GABEL & CYRIL PONNAMPERUMA
doi:10.1038/216453a0
Abstract & References | PDF (386K)
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| | Model for Origin of Monosaccharides: Synthesis of Sugars in Potentially Prebiotic Conditions 455
C. REID & L. E. ORGEL
doi:10.1038/216455a0
References | PDF (137K)
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| | Study of Microbial Evolution through Loss of Biosynthetic Functions: Establishment of "Defective" Mutants 456
STEPHEN ZAMENHOF & HERBERT H. EICHHORN
doi:10.1038/216456a0
Abstract & References | PDF (340K)
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| | Erythrocyte Substitute for Perfusion of Brain 458
HENRY A. SLOVITER & TOSHIHARU KAMIMOTO
doi:10.1038/216458a0
Abstract & References | PDF (347K)
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| | Letters | |
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| | Continuum Radiation from Quasi-stellar Sources 461
J. D. JUKES
doi:10.1038/216461a0
First paragraph & References | PDF (114K)
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| | Case of the Vanished Correlation in Statistics of Quasi-stellar Objects 461
G. GAMOW
doi:10.1038/216461b0
First paragraph & References | PDF (447K)
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| | Evidence of Continuum Emission from Jupiter at 18 Mc/s 462
C. H. BARROW & J. R. WILLIAMS
doi:10.1038/216462a0
First paragraph & References | PDF (563K)
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| | Early History of the North Atlantic Ocean and its Margins 464
W. B. HARLAND
doi:10.1038/216464a0
First paragraph & References | PDF (491K)
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| | Variations in Two New Zealand Glaciers during the Past 800 Years 467
C. J. BURROWS & JOANNA LUCAS
doi:10.1038/216467a0
First paragraph & References | PDF (207K)
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| | Devonian Conodonts from Kashmir 468
V. J. GUPTA, F. H. T. RHODES & R. L. AUSTIN
doi:10.1038/216468a0
First paragraph & References | PDF (211K)
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| | Electron-beam Dosimetry using the Radiation-induced Fluorescence of Polyethylene 469
D. A. RADOVSKY & H. BRUMBERGER
doi:10.1038/216469a0
First paragraph & References | PDF (225K)
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| | Stability of Dilute Viscoelastic Flows 470
W. B. GILES & W. T. PETTIT
doi:10.1038/216470a0
First paragraph & References | PDF (311K)
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| | Irradiation Creep in Several Metals and Alloys at 100° C 472
G. W. LEWTHWAITE, D. MOSEDALE & I. R. WARD
doi:10.1038/216472a0
First paragraph & References | PDF (261K)
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| | Formation of Zinc Ferrite at Low Temperatures 473
J. BERETKA & M. J. RIDGE
doi:10.1038/216473a0
First paragraph & References | PDF (261K)
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| | Nuclear Magnetic Resonance as a Method for Continuously Monitoring Rehydration 474
G. E. HALL, J. G. LAWRENCE & R. J. SIMPSON
doi:10.1038/216474a0
First paragraph & References | PDF (223K)
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| | Optical Nitrogen-15 Analysis of Small Nitrogen Samples using a Noble Gas to sustain the Discharge 475
G. B. COOK, J. A. GOLEB & V. MIDDELBOE
doi:10.1038/216475a0
First paragraph & References | PDF (227K)
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| | Chemisorption of Propane on Platinum Surfaces in the Presence of Pre-adsorbed Water 476
G. SANDSTEDE, G. WALTER & G. WURZBACHER
doi:10.1038/216476a0
First paragraph & References | PDF (227K)
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| | Optically Positive, Isotropic and Negative Lamellar Liquid Crystalline Solutions 477
J. ROGERS & P. A. WINSOR
doi:10.1038/216477a0
First paragraph & References | PDF (407K)
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| | Effect of Hydrogen Atom and Electron Scavengers on the Radiolysis of Ammonia Gas 479
G. R. A. JOHNSON & M. SIMIC
doi:10.1038/216479a0
First paragraph & References | PDF (256K)
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| | Molecular Theory of Sweet Taste 480
R. S. SHALLENBERGER & T. E. ACREE
doi:10.1038/216480a0
First paragraph & References | PDF (324K)
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| | Hereditary Defect in Iron Absorption in Mice 482
P. H. PINKERTON & R. M. BANNERMAN
doi:10.1038/216482a0
First paragraph & References | PDF (248K)
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| | Stimulation of Yolk Deposition in an Ichneumonid Parasitoid by feeding Synthetic Juvenile Hormone 483
G. K. BRACKEN & K. K. NAIR
doi:10.1038/216483a0
First paragraph & References | PDF (258K)
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| | Artificial Feeding Technique for Rhipicephalus appendiculatus and the Transmission of Theileria parva from the Salivary Secretion 484
R. E. PURNELL & L. P. JOYNER
doi:10.1038/216484a0
First paragraph & References | PDF (263K)
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| | Mycobacteriophages isolated from Human Sources 485
EDITH MANKIEWICZ & M. LIIVAK
doi:10.1038/216485a0
First paragraph & References | PDF (248K)
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| | Degradation of Salicylate by Aspergillus niger
486
LAWRENCE R. KRUPKA, FRED A. RACLE & ARA DER MARDEROSIAN
doi:10.1038/216486a0
First paragraph & References | PDF (232K)
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| | Variation in the Human Chromosome Number 487
A. D. BLOOM, P. G. ARCHER & A. A. AWA
doi:10.1038/216487a0
First paragraph & References | PDF (365K)
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| | Urinary Excretion of 3,4-Dimethoxyphenylethylamine in Parkinson's Disease 489
U. K. RINNE & V. SONNINEN
doi:10.1038/216489a0
First paragraph & References | PDF (135K)
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| | Psychotomimetic Indole Compound in the Urine of Schizophrenics and Mentally Defective Patients 490
H. TANIMUKAI, ROWENA GINTHER, JOANNE SPAIDE & H. E. HIMWICH
doi:10.1038/216490a0
First paragraph & References | PDF (238K)
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| | Cytological Studies of the Pathogenesis of Chronic Lymphatic Leukaemia 491
S. ALBERT, G. W. MOORE, R. POTTER, W. J. ARNOLD & P. L. WOLF
doi:10.1038/216491a0
First paragraph & References | PDF (361K)
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| | Cellular Distribution in the Bone Marrow after Thymectomy 493
A. CORSI & G. V. GIUSTI
doi:10.1038/216493a0
First paragraph & References | PDF (261K)
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| | Susceptibility to Morphine-induced Analgesia in Mice 494
RALPH W. MORRIS & EDWARD F. LUTSCH
doi:10.1038/216494a0
First paragraph & References | PDF (272K)
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| | Neural Release of Brain Serotonin and Body Temperature 495
M. H. SHEARD & G. K. AGHAJANIAN
doi:10.1038/216495a0
First paragraph & References | PDF (416K)
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| | Synaptic Structures at Nodes of Ranvier in Spinal Cords of Mice 496
FAHMY I. KHATTAB
doi:10.1038/216496a0
First paragraph & References | PDF (575K)
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| | Capillary Permeability Effects of Synovial Fluid, AMCHA, E-ACA and Prednisolone Acetate 497
M. NAKAHARA & T. TOKITA
doi:10.1038/216497a0
First paragraph & References | PDF (413K)
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| | Anaemia, Thrombocytopenia and Reduced Platelet Adhesiveness in Rats fed Bracken Fern, and Protective Effects of Baty1 Alcohol 498
R. B. PHILP & C. W. GOWDEY
doi:10.1038/216498a0
First paragraph & References | PDF (243K)
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| | Cell Regeneration in Protein Deficiency 499
M. G. DEO, MEERA MATHUR & V. RAMALINGASWAMI
doi:10.1038/216499a0
First paragraph & References | PDF (278K)
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| |  2-Macroglobulin as Progressive Antithrombin 500
M. STEINBUCH, C. BLATRIX & F. Josso
doi:10.1038/216500a0
First paragraph & References | PDF (281K)
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| | Cyanopsin, a Visual Pigment of Retinal Origin 501
P. LIEBMAN & G. ENTINE
doi:10.1038/216501a0
First paragraph & References | PDF (552K)
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| | Difference in Swelling and Opacity Formation between Young and Old Lenses 503
A. PIRIE
doi:10.1038/216503a0
First paragraph & References | PDF (603K)
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| | Incorporation of Sulphur-35 into the Subcommissural Organ and Reissner's Fibre 504
G. STERBA, A. ERMISCH, K. FREYER & G. HARTMANN
doi:10.1038/216504a0
First paragraph & References | PDF (426K)
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| | Pesticide-induced Enzyme Breakdown of Steroids in Birds 505
D. B. PEAKALL
doi:10.1038/216505a0
First paragraph & References | PDF (233K)
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| | Three Lactic Dehydrogenase Isoenzyme Systems in Pig Spermatozoa and the Polymorphism of Sub-units controlled by a Third Locus C
506
M. VALENTA, J. HYLDGAAKD-JENSEN & J. MOUSTGAARD
doi:10.1038/216506a0
First paragraph & References | PDF (311K)
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| |
In vivo Interaction of 4-Nitroquinoline-l-oxide and its Derivatives with DNA 508
TAIJIRO MATSUSHIMA, IKUKO KOBUNA & TAKASHI SUGIMURA
doi:10.1038/216508a0
First paragraph & References | PDF (106K)
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| | Isonicotinic Acid Hydrazide as an Inhibitor of Transpeptidation: Relevance for Blood Coagulation 508
L. LORAND & A. JACOBSEN
doi:10.1038/216508b0
First paragraph & References | PDF (208K)
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| | Rate of Release of Iron from Ferritin to 1,10-Phenanthroline 509
MARK M. JONES & DAVID O. JOHNSTON
doi:10.1038/216509a0
First paragraph & References | PDF (223K)
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| | Radiotracer Determination of Supernatant Liquid entrapped among Centrifuged Red Blood Cells 510
M. J. TRZECIAK, D. R. KROUSE & G. T. JUDSON
doi:10.1038/216510a0
First paragraph & References | PDF (256K)
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| | Isoenzymes of Phosphoglucose Isomerase in Mice 511
N. D. CARTER & C. W. PARR
doi:10.1038/216511a0
First paragraph & References | PDF (141K)
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| | Fractionation of Protein Solutions by Membrane Partition Chromatography 511
W. F. BLATT, B. G. HUDSON, S. M. ROBINSON & E. M. ZIPILIVAN
doi:10.1038/216511b0
First paragraph & References | PDF (338K)
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| | Possible Conformations of 5S Ribosomal RNA 513
C. R. CANTOR
doi:10.1038/216513a0
First paragraph & References | PDF (170K)
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| | Coupling of Enzymes to Cellulose using Chloro-s-triazines 514
G. KAY & E. M. CROOK
doi:10.1038/216514a0
First paragraph & References | PDF (182K)
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| | Pupil Size as a Measure of Arousal during Information Processing 515
J. BRADSHAW
doi:10.1038/216515a0
First paragraph & References | PDF (233K)
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| | Gymnoplasts instead of "Protoplasts" 516
A. FREY-WYSSLING
doi:10.1038/216516a0
First paragraph & References | PDF (140K)
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| | Book Reviews |  |
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| | Statistical Mechanics 517
J. S. Rowlinson reviews Statistical Mechanics, Thermodynamics and Kinetics
By
Oscar Knefler Rice
doi:10.1038/216517a0
PDF (132K)
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| | Distribution Theory 517
L. S. GODDARD reviews Mathematics for the Physical Sciences
By
Laurent Schwartz
doi:10.1038/216517b0
PDF (132K)
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| | For Students of Chemistry 517
S. ZIENAU reviews Introduction to Quantum Theory
By
Hendrik F. Hameka
doi:10.1038/216517c0
PDF (273K)
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| | Continuum Mechanics 518
A. J. M. SPENCER reviews Modern Developments in the Mechanics of Continua
Edited by
Salamon Eskinazi
doi:10.1038/216518a0
PDF (145K)
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| | Many-Body Theory 518
D. J. THOULESS reviews Field Theoretical Methods in Many-Body Systems
By
D. A. Kirzhnits
doi:10.1038/216518b0
PDF (271K)
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| | Raman Spectroscopy 519
D. W. O. HEDDLE reviews Raman Spectroscopy
Theory and Practice. Edited by
Herman A. Szymanski
doi:10.1038/216519a0
PDF (130K)
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| | Semiconductors 519
A. A. SHEPHERD reviews Semiconductors and Semimetals
Edited by
R. K. Willardson & Albert C. Beer
doi:10.1038/216519b0
PDF (130K)
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| | Unified Machines 519
E. R. LAITHWAITE reviews The Unified Theory of Electrical Machines
By
Charles V. Jones
doi:10.1038/216519c0
PDF (258K)
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| | Electrical Text 520
L. MOLYNEUX reviews Electrical Technology
By
Edward Hughes
doi:10.1038/216520a0
PDF (132K)
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| | Heterocyclic Advances 520
G. L. BUCHANAN reviews Advances in Heterocyclic Chemistry, Vol. 7
Edited by
A. R. Katritzky, A. J. Boulton, A. R. Katritzky & A. J. Boulton
doi:10.1038/216520b0
PDF (132K)
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| | Rotatory Dispersion in Bonn 520
R. BONNETT reviews Optical Rotatory Dispersion and Circular Dichroism in Organic Chemistry
doi:10.1038/216520c0
PDF (270K)
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| | Student Microbiology 521
J. R. S. FINCHAM reviews The Biology of Fungi, Bacteria and Viruses
By
Greta Stevenson
doi:10.1038/216521a0
PDF (143K)
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| | Work with Tissues 521
N. R. LING & NORMAN WILLIAMSON reviews Animal Tissue Techniques
By
Gretchen L. Humanson
doi:10.1038/216521b0
PDF (276K)
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| | Teaching Plant Pathology 522
R. K. ROBINSON reviews Sourcebook of Laboratory Exercises in Plant Pathology
doi:10.1038/216522a0
PDF (137K)
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| | Inside Plants 522
D. J. B. WHITE reviews Plant Anatomy
By
A. Fahn
doi:10.1038/216522b0
PDF (137K)
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| | Experimental Animal Ecology 522
K. A. KERSHAW reviews Introduction to Experimental Ecology
By
T. Lewis & L. R. Taylor
doi:10.1038/216522c0
PDF (270K)
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| | Peepholes into Cognition 523
H. C. A. DALE reviews Concepts and the Structure of Memory
Edited by
Benjamin Kleinmuntz
doi:10.1038/216523a0
PDF (137K)
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| | Obituary | |
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| | Dr J. C. Trevor 523
MARIE LAWRENCE
doi:10.1038/216523b0
PDF (137K)
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| | Correspondence | |
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| | Special Relativity 524
J. H. FULLERTON
doi:10.1038/216524a0
PDF (124K)
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| | Special Relativity 524
W. BARRETT
doi:10.1038/216524b0
PDF (124K)
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| | "Snags in Space" 524
J. SAYERS, F. G. SMITH & K. H. STEWART
doi:10.1038/216524c0
PDF (124K)
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| | Forthcoming Events | |
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| | Forthcoming Events 525
doi:10.1038/216525a0
PDF (157K)
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| | Appointments Vacant | |
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| | Appointments Vacant 525
doi:10.1038/216525b0
PDF (299K)
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| | Reports and other Publications | |
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| | Reports and other Publications 526
doi:10.1038/216526a0
PDF (146K)
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