Letters to Editor

Hormone-induced Desensitisation of Hormonal Control of Cyclic AMP Levels in Human Diploid Fibroblasts

• T. J. FRANKLIN
• S. J. FOSTER

pK of Thiamine C(2)H

• RUDOLF F. W. HOPMANN
• GIAN PIETRO BRUGNONI

Extensive Transformation of Lymphocytes by a Mycoplasma Organism

• HAIM GINSBURG
• JACQUES NICOLET

Studies on the Active Principle of Solanum malacoxylon

• D. J. HUMPHREYS

New Findings on Cephalosporin C Biosynthesis

• YUKIO FUJISAWA
• HIDEO SHIRAFUJI
• TOSHIHIKO KANZAKI

Antiviral and Non-antiviral Activity of Highly Purified Interferon

• WILLIAM B. STEWART II
• ERIK De CLERCQ
• KURT PAUCKER

Evidence for Common Genetic Determinants of Nitrogenase and Nitrate Reductase in Rhizobium meliloti

• Á. KONDOROSI
• ILONA BARABÁS
• R. D. HOTCHKISS

DNA Sequence restricted by Restriction Endonuclease AP from Haemophilus aphirophilus

• H. SUGISAKI
• M. TAKANAMI

Tetrodotoxin and Cobalt Blockade of Neuroblastoma Action Potentials

• ILAN SPECTOR
• YOSEF KIMHI
• PHILLIP G. NELSON

Fibroblast Chalone and Serum Mitogen (Anti-chalone)

• JOHN C. HOUCK
• VISHWA K. SHARMA
• RICHARD F. CHENG

Effect of Phenobarbitone on the Biliary Excretion of Methylmercury in Rats and Mice

• LASZLO MAGOS
• T. W. CLARKSON

Stimulation of DNA Synthesis in CNS Neurones by Sustained Depolarisation

• E. F. STILLWELL
• C. M. CONE
• C. D. CONE JUN.

Quantitative Differences between N-terminal Methionyl Nascent Globin Chains of Human and Rabbit Reticulocytes

• HARUO SUZUKI
• HARVEY A. ITANO

Leakage of Cyclic AMP from Human Diploid Fibroblasts in Tissue Culture

• T. J. FRANKLIN
• S. J. FOSTER

Biological Membrane Rupture and a Phase Transition Model

• J. E. KRIZAN
• A. R. WILLIAMS

Teratocytes as a Source of Juvenile Hormone Activity in a Parasitoid-Host Relationship

• R. L. JOINER
• S. B. VINSON
• J. B. BENSKIN

Antibodies to Simian C-type Virus Antigen in Sera of Gibbons (Hylobates sp.)

• T. G. KAWAKAMI
• P. M. BUCKLEY
• A. DePAOLI

A Human B Lymphocyte Specific Antigen

• M. F. GREAVES
• G. BROWN

Presence of Glutamate Synthase in Fission Yeasts and its Possible Role in Ammonia Assimilation

• C. M. BROWN
• VALERIE J. BURN
• B. JOHNSON

Altered Neural Protein in Murine Muscular Dystrophy

• B. SALAFSKY
• C. A. STIRLING