PROCEEDINGS 



OF 



THE ROYAL SOCIETY. 



Series B. Vol. 81. 



No. B 545. 



BIOLOGICAL SCIENCES. 



CONTENTS. 



Page 



Address of the President, LORD RAYLEIGH, O.M., D.C.L., at the 

 Anniversary Meeting on November 30, 1 908 



A Trypanosome from Zanzibar. By Colonel Sir DAVID BRUCE, C.B., 

 M.B., F.R.S., D.Sc, LL.D., Army Medical Service, and Captains 

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

 Medical Corps. (Plates 1 and 2) . ... 



A Summary of further Researches on the Etiology of Endemic Goitre. By 

 ROBERT McCARRISON, M.B., B.Ch., Captain, Indian Medical Service . 



The Proportion of the Sexes produced by Whites and Coloured Peoples in 

 Cuba. By WALTER HEAPE, M.A., F.R.S., Trinity College, Cambridge. 

 (Abstract) 



Electrolytes and Colloids. — The Physical State of Gluten. By Prof. 

 T. B. WOOD and W. B. HARDY, F.R.S 



The Colours and Pigments of Flowers with Special Reference to Genetics. 

 By M. WHELDALE 



An Experimental Estimation of the Theory of Ancestral Contributions in 

 Heredity. By A. D. DARBISHIRE, Demonstrator of Zoology in the 

 Royal College of Science, London ....... 



The Action of the Venom of Sepedon haemachates of South Africa. By Sir 

 THOMAS R. FRASER, M.D., LL.D., Sc.D., F.R.S., Professor of Materia 

 Medica, University of Edinburgh ; and JAMES A. GUNN, M.A., B.Sc, 

 M.D., Assistant in the Materia Medica Department, University of 

 Edinburgh. (Abstract) . . . . . . 



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