PROCEEDINGS 



OF 



THE ROYAL SOCIETY. 



Series B. Vol. 89. No. B 613. 



BIOLOGICAL SCIENCES. 



/ 



CONTENTS. 



Page 



Investigations dealing with the Phenomena of Clot Formations. Part III. — 

 Further Investigations of the Cholate Gel. By S. B. SCHRYVER. 

 Assistant Professor in the Imperial College of Science . . . . 176 



Gametogenesis and Sex- Determination in the Gail-Fly, Neuroterus lenticularis 

 (Spathegaster baccarum).— Part III. By L. DONCASTER, Sc.D., F.R.S., 

 Fellow of King's College, Cambridge. (Plates 6 and 7) . . .183 



Obituary Notices of Fellows deceased : — Henry Charlton Bastian ; Arthur 



Sheridan Lea xxi — xxvii 



printed for THE ROYAL SOCIETY and sold by 



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



Price Two Shillings. 



No. B 613. 



April 1, 1916. 



