PROCEEDINGS 



OF 



THE ROYAL SOCIETY. 



BIOLOGICAL SCIENCES. 



CONTENTS. 



Page 



On the Presence of Radium in Some Carcinomatous Tumours. By 



W. S. LAZARUS-BARLOW, M.D., F.R.C.P 170 



A Critical Study of Experimental Fever. By EDWARD C. HORT, F.R.C.P. 



Edin., and W. J. PENFOLD, M.B., CM 174 



On the Systematic Position of the Spirochaets. By CLIFFORD DOBELL, 

 Fellow of Trinity College, Cambridge ; Lecturer at the Imperial College 

 of Science, London, S.W. . . . . . . . . .186 



The Production of Variation in the Physiological Activity of Bacillus coli by 



the Use of Malachite-Green. By CECIL REVIS 192 



The Influence of Selection and Assortative Mating on the Ancestral and 

 Fraternal Correlations of a Mendelian Population. By E. C. SNOW, 

 M.A., D.Sc, Biometric Laboratory, University College, London . . 195 



The Nature of the Immune Reaction to Transplanted Cancer in the Rat. By 



WM. H. WOGLOM, M.D 197 



The Manifestation of Active Resistance to the Growth of Implanted Cancer. 



By B. R. G. RUSSELL, M.D. . 201 



The Distribution of Oxydases in Plants and their Role in the Formation of 

 Pigments. By FREDERICK KEEBLE, Sc.D., Professor of Botany, 

 University College, Reading, and E. FRANKLAND ARMSTRONG, Ph.D., 

 D.Sc 214 



On the Nature of Pancreatic Diabetes. (Preliminary Communication.) By 



F. P. KNOWLTON and E. H. STARLING, F.R.S 218 



The Measurement of Trypanosoma rhodesiense. By J. W. W. STEPHENS, 

 M.D. Cantab., D.P.H., and H. B. FANTHAM, D.Sc. Lend., B.A. Cantab. 

 (Plate 3) 223 



Notes on some Flagellate Infections found in Certain Hemiptera in Uganda. 



By MURIEL ROBERTSON 234 



Notes on Certain Aspects of the Development of Trypanosoma gambiense in 



Glossina palpalis. By MURIEL ROBERTSON 241 



printed for THE ROYAL SOCIETY and sold by 



HARRISON & SONS, 45, ST. MARTIN'S LANE. LONDON, W.C. 



Price Three Shillings and Sixpence. 



No. B 578. 



June 14, 1912. 



