PROCEEDINGS 



OF 



THE ROYAL SOCIETY 



Series B. Vol. 92, No. B 644. 



BIOLOGICAL SCIENCES. 



CONTENTS. 



Page 



On " Intertradion " between Albuminous Substances and Saline Solutions. 



By Sir ALMROTH E. WRIGHT, M.D., F.R.S Ii8 



On the Local and Generalised Action of Radium and X-Rays upon Tumour 

 Growth. By S. RUSS. D.Sc, H. CHAMBERS, M.D., and G. M. SCOTT, 

 Cancer Research Laboratories, Middlesex Hospital . . . .125 



The Enzymes of B. coli communis. Part V. — (a) Anaerobic Growth 

 followed by Anaerobic and Aerobic Fermentation, (b) The Effects of 

 Aeration during the Fermentation. By E. C. GREY and E. G. YOUNG . I35 



Anthocyanins and Anthocyanidins. Part IV. — Observations on : (a) Antho- 

 cyan Colours in Flowers, and (b) the Formation of Anthocyans in Plants. 

 By A. E. EVEREST, D.Sc, Ph.D., F.I.C., and A. J. HALL. B.Sc, A.LC. ISO 



Obituary Notices of Fellows deceased : — Sir William Osier (with portrait) ; 



John Gilbert Baker xvii— xxx 



PRINTED AND PUBLISHED FOR THE ROYAL SOCIETY BY 

 HARRISON & SONS, Lid., 44-47, ST. MARTIN'S LANE. LONDON. W.C.2. 



Price Four Shillings. 



No. B 644. 



May 2, 1921. 



