| | Opinion |  |
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| | Mr. Macnamara and Mr. Crosland 851
doi:10.1038/213851a0
PDF (226K)
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| | Ribonuclease 852
doi:10.1038/213852a0
PDF (117K)
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| | What now, Apollo? 852
doi:10.1038/213852b0
PDF (117K)
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| | News and Views |  |
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| | War of Attrition 853
doi:10.1038/213853a0
PDF (130K)
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| | What Macnamara said 853
doi:10.1038/213853b0
PDF (256K)
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| | Aircraft for Aldabra? 854
doi:10.1038/213854a0
PDF (132K)
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| | Research into Environment 854
doi:10.1038/213854b0
PDF (132K)
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| | University of Cranfield? 854
doi:10.1038/213854c0
PDF (262K)
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| | Asbestos in the Lungs 855
doi:10.1038/213855a0
PDF (135K)
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| | Pugwash in Australia 855
doi:10.1038/213855b0
PDF (279K)
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| | Cow Green Lost 856
doi:10.1038/213856a0
PDF (149K)
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| | Navigation on Show 856
doi:10.1038/213856b0
PDF (149K)
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| | Floral Stamps 856
doi:10.1038/213856c0
PDF (149K)
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| | Molecular Weights without Tears 856
A Correspondent in Molecular Biology
doi:10.1038/213856d0
PDF (279K)
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| | Survival of Starved Bacteria 857
A Correspondent in Microbiology
doi:10.1038/213857a0
PDF (135K)
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| | Parliament in Britain 858
doi:10.1038/213858a0
PDF (127K)
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| | [News and Views] 858
doi:10.1038/213858b0
PDF (234K)
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| | 1967 Gordon Research Conferences 859
doi:10.1038/213859a0
PDF (112K)
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| | Errata |  |
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| | Erratum 859
doi:10.1038/213859b0
PDF (112K)
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| | Erratum 859
doi:10.1038/213859c0
PDF (110K)
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| | Correspondence | |
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| | Economic Geochemistry 859
JOHN S. WEBB
doi:10.1038/213859d0
PDF (110K)
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| | News | |
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| | Who is Carl Zeiss? 860
Our Special Correspondent
doi:10.1038/213860a0
PDF (157K)
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| | A New University in Scotland 861
Our Special Correspondent
doi:10.1038/213861a0
PDF (177K)
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| | Article | |
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| | Tertiary Structure of Ribonuclease 862
G. KARTHA, J. BELLO & D. HARKER
doi:10.1038/213862a0
Abstract & References | PDF (415K)
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| | Book Reviews |  |
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| | Kilmister on Eddington 866
J. L. SYNGE reviews Sir Arthur Eddington
By
C. W. Kilmister
doi:10.1038/213866a0
PDF (133K)
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| | Early Type Stars 866
R. D. CANNON reviews The Early Type Stars
By
Anne B. Underhill
doi:10.1038/213866b0
PDF (267K)
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| | Ocean Waves and Turbulence 867
W. MUNK reviews The Dynamics of the Upper Ocean
By
O. M. Phillips
doi:10.1038/213867a0
PDF (139K)
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| | Radiation Belts Reviewed 867
J. W. DUNGEY reviews Radiation Trapped in the Earth's Magnetic Field
Edited by
Billy M. McCormac
doi:10.1038/213867b0
PDF (269K)
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| | Mathematical Physics 868
A. HERZENBERG reviews Problems of Mathematical Physics
By
N. N. Lebedev, I. P. Skalskaya, Y. S. Uflyand, Richard A. Silverman & Edward L. Reiss
doi:10.1038/213868a0
PDF (133K)
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| | Vacuum Seals 868
F. BROOK reviews Vacuum Sealing Techniques
By
A. Roth
doi:10.1038/213868b0
PDF (133K)
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| | Fertile Soil 868
M. M. COOPER reviews The Control of Soil Fertility
By
G. W. Cooke
doi:10.1038/213868c0
PDF (260K)
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| | Preservation by Irradiation 869
M. INGRAM reviews Food Irradiation
doi:10.1038/213869a0
PDF (132K)
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| | Early Pregnancy 869
B. MORRIS reviews Pre-implantation Stages of Pregnancy
Edited by
G.E.W. Wolstenholme & Maeve O'Connor
doi:10.1038/213869b0
PDF (132K)
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| | Obituaries | |
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| | Professor J. W. Heslop Harrison 869
doi:10.1038/213869c0
PDF (273K)
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| | Professor F. C. Ormerod 870
D. F. N. HARRISON
doi:10.1038/213870a0
PDF (146K)
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| | Articles | |
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| | Helium Deficiency in Old Halo B Stars 871
G. S. GREENSTEIN, J. W. TRURAN & A. G. W. CAMERON
doi:10.1038/213871a0
Abstract & References | PDF (325K)
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| | Uranium and Thorium Abundances in Carbonaceous Chondrites 873
J. W. MORGAN & J. F. LOVERING
doi:10.1038/213873a0
Abstract & References | PDF (350K)
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| | Haemoglobin New York 876
HELEN M. RANNEY, ALAN S. JACOBS & RONALD L. NAGEL
doi:10.1038/213876a0
Abstract & References | PDF (369K)
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| | Low Molecular Weight RNA Components from KB Cells 878
B. G. FORGET & S. M. WEISSMAN
doi:10.1038/213878a0
Abstract & References | PDF (522K)
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| | Genetics of Phenylketonuria: Heterozygosity for phenylketonuria 882
L. I. WOOLF, W. I. CRANSTON & B. L. GOODWIN
doi:10.1038/213882a0
Abstract & References | PDF (220K)
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| | Genetics of Phenylketonuria: Third Allele at the Phenylalanine Hydroxylase Locus in Man 883
doi:10.1038/213883a0
PDF (271K)
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| | Fractionation of Beef Liver Ribosomes with Specific Antiserum 885
JOHN A. DUERRE
doi:10.1038/213885a0
Abstract & References | PDF (292K)
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| | Activity of Ribosomal Phosphodiesterase in a Protozoan 887
LAWRENCE H. LAZARUS & OTTO H. SCHERBAUM
doi:10.1038/213887a0
Abstract & References | PDF (240K)
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| | Origin of Kaposi's Sarcoma from the Reticulo-endothelial System 889
A. D. DAYAN & P. D. LEWIS
doi:10.1038/213889a0
Abstract & References | PDF (323K)
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| | Ecology and Taxonomy of the Gorilla 890
COLIN P. GROVES
doi:10.1038/213890a0
Abstract & References | PDF (524K)
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| | Polarized Light and Underwater Vision 893
J. N. LYTHGOE & C. C. HEMMINGS
doi:10.1038/213893a0
Abstract & References | PDF (243K)
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| | Letters | |
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| | Unified Model for Interstellar Extinction and Polarization 895
N. C. WICKRAMASINGHE & K. S. KRISHNA SWAMY
doi:10.1038/213895a0
First paragraph & References | PDF (204K)
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|
| | Land's End Granites and Their Relation to the Experimental Granite System 896
BASIL BOOTH
doi:10.1038/213896a0
First paragraph & References | PDF (247K)
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| | Igneous Intrusions and Associated Rocks of the Mangerite–Charnockite Suite 897
D. BRIDGWATER & J. S. WATTERSON
doi:10.1038/213897a0
First paragraph & References | PDF (133K)
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| | A Possible Restriction on CP-Noninvariance in K°-Decay 898
P. K. KABIR
doi:10.1038/213898a0
First paragraph & References | PDF (120K)
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| | Characteristics of Fibre Friction 898
JAMES J. F. KNAPTON
doi:10.1038/213898b0
First paragraph & References | PDF (233K)
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| | Increase in d.c. Dark Conductivity of Anthracene in a Magnetic Field 900
K. MORGAN & R. PETHIG
doi:10.1038/213900a0
First paragraph & References | PDF (82K)
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| | Valency State of Chromium in Seawater 901
R. FUKAI
doi:10.1038/213901a0
First paragraph & References | PDF (119K)
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| | Some Reactions of Triruthenium Dodecacarbonyl 901
B. F. G. JOHNSON, R. D. JOHNSTON, P. L. JOSTY, J. LEWIS & I. G. WILLIAMS
doi:10.1038/213901b0
First paragraph & References | PDF (228K)
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|
| | Chemiluminescence of Humic Acids 902
DANUTA S AWI SKA & JANUSZ SAWISKI
doi:10.1038/213902a0
First paragraph & References | PDF (211K)
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|
| | Antimalarial Activity of Prodigiosin 903
A. J. CASTRO
doi:10.1038/213903a0
First paragraph & References | PDF (223K)
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|
| | Phylogenetic Relationships of Echinoderms : Biochemical Evidence 904
HENRY I. BOLKER
doi:10.1038/213904a0
First paragraph & References | PDF (253K)
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|
| | Crinosterol: a Unique Sterol from a Comatulid Crinoid 905
HENRY I. BOLKER
doi:10.1038/213905a0
First paragraph & References | PDF (234K)
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|
| | Formation and Destruction of Pyrimidine Dimers in Polynucleotides by Ultra-violet Irradiation in the Presence of Proflavine 906
R. B. SETLOW & W. L. CARRIER
doi:10.1038/213906a0
First paragraph & References | PDF (224K)
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|
| | Contribution of Dimers containing Cytosine to Ultra-violet Inactivation of Transforming DNA 907
JANE K. SETLOW & R. B. SETLOW
doi:10.1038/213907a0
First paragraph & References | PDF (283K)
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|
| |
cis-syn Thymine Homodimer from Ultraviolet Irradiated Calf Thymus DNA 909
A. J. VARGHESE & SHIH YI WANG
doi:10.1038/213909a0
First paragraph & References | PDF (201K)
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|
| | Influence of Protracted Infusion of Glucose and Insulin on the Composition and Regeneration Activity of Liver after Partial Hepatectomy in Rats 910
J.  IMEK, VL. CHMELA , J. M LKA, J. PAZDERKA & Z. CHARVÁT
doi:10.1038/213910a0
First paragraph & References | PDF (229K)
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|
| | Catabolism of Tryptophan by the Isolated, Perfused Liver and Intestine 911
K. I. ALTMAN & G. B. GERBER
doi:10.1038/213911a0
First paragraph & References | PDF (323K)
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|
| | Connective Tissue and the Pentose Phosphate Pathway in Normal and Denervated Muscle 913
LUIS GARCIA-BUÑUEL & VIRGINIA M. GARCIA-BUÑUEL
doi:10.1038/213913a0
First paragraph & References | PDF (229K)
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|
| | Phenylketonuria and Vitamin B6 Function 914
Y. HOONG LOO & P. RITMAN
doi:10.1038/213914a0
First paragraph & References | PDF (338K)
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|
| | Phenylketonuria in Rats : a Model for Biochemical Studies 916
GAIL DOLAN & C. GODIN
doi:10.1038/213916a0
First paragraph & References | PDF (259K)
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|
| | Effects of Steroids on Chrysanthemum in relation to Growth and Flowering 917
P. K. BISWAS, K. B. PAUL & J. H. M. HENDERSON
doi:10.1038/213917a0
First paragraph & References | PDF (249K)
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|
| | Inhibitory Effect of Salicylates and Cinchophen Derivatives on Amino-acid Incorporation 918
M. REUNANEN, O. HÄNNINEN & K. HARTIALA
doi:10.1038/213918a0
First paragraph & References | PDF (259K)
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|
| | Photochemical Degradation of Diquat 919
P. SLADE & A. E. SMITH
doi:10.1038/213919a0
First paragraph & References | PDF (233K)
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|
| | Reversibility of a Penicillamine Induced Defect in Collagen Aggregation 921
M. E. NIMNI, NANCY GERTH & L. A. BAVETTA
doi:10.1038/213921a0
First paragraph & References | PDF (243K)
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|
| | Double-disc Electrophoresis of Proteins 922
DAVID RACUSEN
doi:10.1038/213922a0
First paragraph & References | PDF (129K)
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|
| | Serological Differentiation of Pythium aphanidermatum from Phytophthora parasitica var. nicotianae and Ph. parasitica
923
D. J. MORTON & P. D. DUKES
doi:10.1038/213923a0
First paragraph & References | PDF (141K)
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|
| | Development of Immunological Memory during the Primary Immune Response 923
THOMAS L. VISCHER, PETER STASTNY & MORRIS ZIFF
doi:10.1038/213923b0
First paragraph & References | PDF (349K)
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|
| | Effect of the Number of Antigens on the Quantity of Cells producing Several Kinds of Antibody 925
JA. S. SCHWARTZMAN
doi:10.1038/213925a0
First paragraph & References | PDF (252K)
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|
| | Stimulation by Leukaemic Sera of Colony Formation in Solid Agar Cultures by Proliferation of Mouse Bone Marrow Cells 926
T. R. BRADLEY, D. METCALF & W. ROBINSON
doi:10.1038/213926a0
First paragraph & References | PDF (247K)
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|
| | Morphological Changes in the Parafollicular Cells of the Rat Thyroid Glands after Administration of Calcium shown by Electron Microscopy 927
T. MATSUZAWA & K. KUROSUMI
doi:10.1038/213927a0
First paragraph & References | PDF (304K)
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|
| | Pattern of DNA Replication of the Sex Chromosomes in Three Males, Two with XYY and One with XXYY Karyotype 928
K. BOCZKOWSKI & M. D. CASEY
doi:10.1038/213928a0
First paragraph & References | PDF (416K)
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|
| | New Carcinogenic Naphthalene and Biphenyl Derivatives 930
J. H. WEISBURGER, N. MANTEL, E. K. WEISBURGER, Z. HADIDIAN & T. FREDRICKSON
doi:10.1038/213930a0
First paragraph & References | PDF (232K)
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|
| | Neoplastic Transformation of Rat Embryo Cells by Simian Papovavirus SV
40
931
A. D. ALTSTEIN, N. N. VASSILJEVA & O. F. SARYCHEVA
doi:10.1038/213931a0
First paragraph & References | PDF (238K)
|
|
| | Spontaneous Neoplastic Transformation of Mouse Heart Tissue in vitro
932
JOSEPH A. DIPAOLO
doi:10.1038/213932a0
First paragraph & References | PDF (307K)
|
|
| | Activity of Aspartate Transcarbamylase in Mammary Tumours induced by 7,12-Dimethyl-benzanthracene in the Rat 934
M. GÖRLICH & E. HEISE
doi:10.1038/213934a0
First paragraph & References | PDF (224K)
|
|
| | X-Radiation Sensitivity of DNA—Ability to form Specific Molecular Hybrids with Isologous mRNA 935
S. ROBEV & Z. MARINOVA
doi:10.1038/213935a0
First paragraph & References | PDF (108K)
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|
| |
In vitro Investigation of Resting Muscle Membrane Potential in Preweanling and Weanling Rat 935
CARLTON F. HAZLEWOOD & BUFORD L. NICHOLS JUN.
doi:10.1038/213935b0
First paragraph & References | PDF (238K)
|
|
| | Measurement of Angiotensin II in Blood 936
RUSSELL E. MORRIS JUN. & PATRICIA R. ROBINSON
doi:10.1038/213936a0
First paragraph & References | PDF (244K)
|
|
| | Metabolic Differentiation of the Anterior and Posterior Latissimus Dorsi of the Chick during Development 937
I. SYROVÝ & E. GUTMANN
doi:10.1038/213937a0
First paragraph & References | PDF (253K)
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|
| | Electrolyte Imbalance as the Mechanism for Inert Gas Narcosis and Anaesthesia 938
P. B. BENNETT & A. J. HAYWARD
doi:10.1038/213938a0
First paragraph & References | PDF (260K)
|
|
| | Finger-prints in Schizophrenia 939
C. S. MELLOR
doi:10.1038/213939a0
First paragraph & References | PDF (231K)
|
|
| | Salivary Secretion in the Cattle Tick as a Means of Water Elimination 940
R. J. TATCHELL
doi:10.1038/213940a0
First paragraph & References | PDF (243K)
|
|
| | Differences in Light Reactions of Larvae of the Armyworm, Leucania separata Walker, in relation to their Phase Status 941
SYUN'ITI IWAO
doi:10.1038/213941a0
First paragraph & References | PDF (252K)
|
|
| | Fallopian Tube and Early Cleavage in the Mouse 942
D. G. WHITTINGHAM & J. D. BIGGERS
doi:10.1038/213942a0
First paragraph & References | PDF (250K)
|
|
| | Dose Rate Effect of Radiation on Spermatogonia of the Silkworm 943
ETSUJI SUGAI & TADAHIKO IIJIMA
doi:10.1038/213943a0
First paragraph & References | PDF (242K)
|
|
| | Culture of Tomato Callus Tissue 944
T. FUKAMI & G. MACKINNEY
doi:10.1038/213944a0
First paragraph & References | PDF (247K)
|
|
| | Changes in the Shoot Apex during the Early Development of the Fern Marsilea vestita
945
JOHN J. GAUDET & RICHARD K. MALENKY
doi:10.1038/213945a0
First paragraph & References | PDF (236K)
|
|
| | Variation in Concentration and Composition of Toxic Alkaloids among Strains of Phalaris tuberosa L. 946
R. N. ORAM & J. D. WILLIAMS
doi:10.1038/213946a0
First paragraph & References | PDF (229K)
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|
| | Positive and Negative Reinforcement from Intracranial Stimulation in Pigeons 947
EUAN M. MACPHAIL
doi:10.1038/213947a0
First paragraph & References | PDF (260K)
|
|
| | Effect of Magnetic Fields on Reaction Time Performance 949
HOWARD FRIEDMAN, ROBERT O. BECKER & CHARLES H. BACHMAN
doi:10.1038/213949a0
First paragraph & References | PDF (202K)
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|
| | Polyplanar Hip Joint for Use in Lower Limb Bracing 950
D. R. SCRUTTON, P. ROBSON & R. M. DAVIES
doi:10.1038/213950a0
PDF (264K)
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|
| | Negentropy, Information and the Feeding of Organisms 952
HAROLD W. WOOLHOUSE
doi:10.1038/213952a0
First paragraph & References | PDF (105K)
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| | Forthcoming Events | |
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| | Forthcoming Events 953
doi:10.1038/213953a0
PDF (152K)
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| | Appointments Vacant | |
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| | Appointments Vacant 953
doi:10.1038/213953b0
PDF (330K)
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| | Reports and other Publications | |
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| | Reports and other Publications 954
doi:10.1038/213954a0
PDF (183K)
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