> • ■ ■ ■ I J 



PROCEEDINGS 



OF 



THE ROYAL SOCIETY. 



Series B. Vol. 82. No. B 556. 



BIOLOGICAL SCIENCES. 



CONTENTS, 



Page 



Contributions to the Biochemistry of Growth. — The Total Nitrogen Meta- 

 bolism of Rats bearing Malignant New Growths. By W. CRAMER 

 and HAROLD PRINGLE 307 



Contributions to the Biochemistry of Growth. — Distribution of Nitrogenous 

 Substances in Tumour and Somatic Tissues. By W. CRAMER and 

 HAROLD PRINGLE 315 



The Alcoholic Ferment of Yeast-juice. Part V. — The Function of Phos- 

 phates in Alcoholic Fermentation. By ARTHUR HARDEN, F.R.S., and 

 WILLIAM JOHN YOUNG (Biochemical Laboratory of the Lister Institute 

 of Preventive Medicine) . . . . . . . .321 



The Causes of Absorption of Oxygen by the Lungs. (Preliminary Com- 

 munication.) By C. GORDON DOUGLAS, B.M., Fellow of St. John's 

 College, and J. S. HALDANE, M.D., F.R.S., Fellow of New College, 

 Oxford 33 ' 



The Action of Nicotine and other Pyridine Bases upon Muscle. By 



V. H. VELEY. F.R.S., and A. D. WALLER, F.R.S 333 



Preliminary Note on the Origin of the Hydrochloric Acid in the Gastric 



Tubules. By MABEL PUREFOY FITZGERALD (Oxford) . . . 34^ 



Studies' on Enzyme Action. XIII. — Enzymes of the Emulsin Type. By 



HENRY E. ARMSTRONG, F.R.S., and EDWARD HORTON, B.Sc. . 349 



The Development of Trypanosomes in Tsetse Flies. By Colonel Sir 

 DAVID BRUCE, C.B.. F.R.S., Army Medical Service ; Captains 

 A. E. HAMERTON, D.S.O., and H. R. BATEMAN, Royal Army Medical 

 Corps ; and Captain F. P. MACKIE, Indian Medical Service. (Sleeping 

 Sickness Commission of the Royal Society, 1908-10) . , . . 368 



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No. B 556. 



'May 10, 1910. 



