Opinion | 19 July 1952

Higher Technological Education

Book Review | 19 July 1952

The American Geographical Society

Book Review | 19 July 1952

Extensions of Thermodynamics

• H. N. V. TEMPERLEY

Book Review | 19 July 1952

Recent Progress in Physics

• S. WEINTROUB

Book Review | 19 July 1952

Parasitism and Symbiosis

• G. LAPAGE

Book Review | 19 July 1952

Temporary Reversal on Bifrost

• N. W. PIRIE

Article | 19 July 1952

Methane and Coal

• ALFRED EGERTON

Article | 19 July 1952

Bird Conservation in Europe

Article | 19 July 1952

Centenary of the American Geographical Society

Obituary | 19 July 1952

Prof. H. A. Kramers

• L. ROSENFELD

Obituary | 19 July 1952

Prof. Louis Guillaume

• A. C. TOWNSEND

News & Views | 19 July 1952

Medical Protozoology in the University of London : Prof. H. E. Shortt, C.I.E., F.R.S.

News & Views | 19 July 1952

Institution of Mining Engineers : President for 1953–54

News & Views | 19 July 1952

Paris to London Television Relay

News & Views | 19 July 1952

The Chemical Society of the University of Edinburgh

News & Views | 19 July 1952

International Commission on Glass

News & Views | 19 July 1952

Problems of Land Reform in Under-developed Countries

News & Views | 19 July 1952

Eradication of Bovine Tuberculosis from Cattle in Denmark

News & Views | 19 July 1952

Ethics of Management

News & Views | 19 July 1952

Imperial College of Science and Technology, London : Report for the Year 1950–51

News & Views | 19 July 1952

Interpretation of Seismograms

News & Views | 19 July 1952

The Blue Sun of September 1950

News & Views | 19 July 1952

Exhibition of Geometry at Chicago

Announcements | 19 July 1952

Announcements

Erratum | 19 July 1952

Erratum

Article | 19 July 1952

Biosynthesis of Carotenes in Ripening Tomatoes

• T. W. GOODWIN
•  & MALINI JAMIKORN

Article | 19 July 1952

Influence of Thiourea on Reproduction in the Minnow

• E. J. W. BARRINGTON
•  & A. J. MATTY

Article | 19 July 1952

Competitive Suppression and the Determination of Linkage in Micro-Organisms

• J. L. JINKS

Article | 19 July 1952

International Health Organizations

• ARTHUR MacNALTY

News | 19 July 1952

British Welding Research Association : New Fatigue Testing Laboratory at Abington, Cambridge

• A. A. WELLS

News | 19 July 1952

The Behaviour of Bower-Birds

News | 19 July 1952

Health of the School Child

News | 19 July 1952

Incentives and Size of Industrial Plant in Great Britain

• W. BALDAMUS

News | 19 July 1952

East African Industrial Research Board: Report For 1951

Letter | 19 July 1952

Evidence for the Polarization of the Protons produced in the D—D Reaction

• G. R. BISHOP
• , J. M. WESTHEAD
• , G. PRESTON
•  & H. H. HALBAN

Letter | 19 July 1952

Weak Echoes from the Ionosphere with Radio Waves of Frequency 1.42 Mc./s.

• S. GNANALINGAM
•  & K. WEEKES

Letter | 19 July 1952

Fine Structure of Chloroplasts in Two Flagellates

• J. J. WOLKEN
•  & G. E. PALADE

Letter | 19 July 1952

Screw Dislocations in Quartz

• B. T. M. WILLIS

Letter | 19 July 1952

The Energy Momentum Tensor in Dirac's New Electromagnetic Theory

• S. F. B. TYABJI

Letter | 19 July 1952

Calculation of the Internal Surface of a Lung

• H. CAMPBELL
•  & S. I. TOMKEIEFF

Letter | 19 July 1952

Hæmolytic and Surface Activity of Sodium Taurocholate

• B. A. PETHICA
•  & J. H. SCHULMAN

Letter | 19 July 1952

Flattening of Meniscus between Water and Organic Solvents

• A. F. H. WARD
•  & L. H. BROOKS

Letter | 19 July 1952

Stabilization of Oxidative Phosphorylation in Heart-Muscle Sarcosomes

• E. C. SLATER
•  & K. W. CLELAND

Letter | 19 July 1952

Glucose-6-Phosphate Dehydrogenase Activity of Rat Liver

• G. E. GLOCK
•  & P. McLEAN

Letter | 19 July 1952

Polynucleotides from Deoxyribonucleic Acids

• J. D. SMITH
•  & ROY MARKHAM

Letter | 19 July 1952

Biochemical Differences between Red and White Muscle

• R. A. LAWRIE

Letter | 19 July 1952

Paper Electrophoresis of Serum Proteins

• B. LEVIN
•  & V. G. OBERHOLZER

Letter | 19 July 1952

Inhibition of Lysine Decarboxylase from E. coli by Homologous Rabbit Antibody

• ARTHUR F. HOWE
•  & HENRY P. TREFFERS

Letter | 19 July 1952

Reported Gamma Glutamyl Activation of Peptide-Bond Synthesis

• RICHARD W. HENDLER
•  & DAVID M. GREENBERG

Letter | 19 July 1952

Purification of a Lipid Material (‘Cord Factor’) obtained from Young Cultures of Tubercle Bacilli

• E. SORKIN
• , H. ERLENMEYER
•  & H. BLOCH

Letter | 19 July 1952

Toxic Principle of Lathyrus sativus

• M. N. RUDRA

Letter | 19 July 1952

Toxicity of Dextran in Rats

• T. EDLUND
• , B. LÖFGREN
•  & L. VÄLI

Letter | 19 July 1952

Viability of Conispiculum guindiensis in Calotes versicolor Preserved in Formalin

• N. G. S. RAGHAVAN

Letter | 19 July 1952

Effect of Nitrite on the Nuclear Structure in the Silkworm

• KAZUO YAMAFUJI

Letter | 19 July 1952

Some Effects of Ultra-violet Radiation on Lemna minor

• E. WANGERMANN
•  & H. J. LACEY

Letter | 19 July 1952

Identification of Tertiary Pollen Grains with those of New Guinea and New Caledonian Beeches

• ISABEL C. COOKSON

Letter | 19 July 1952

Secondary Piliferous Layer in the Lupin

• P. A. LUSH

Forthcoming Events | 19 July 1952

Forthcoming Events

Appointments Vacant | 19 July 1952

Appointments Vacant

Reports and Other Publications | 19 July 1952

Reports and other Publications