PROCEEDINGS 



OF 



THE ROYAL SOCIETY. 



Series B. Vol. 77. No. B 5i8. 



BIOLOGICAL SCIENCES. 



CONTENTS. 



A Case of Regeneration in Polychaete Worms. By ARNOLD T. WATSON 

 F.L.S 



On the Cytology of Malignant Growths. By J. BRETLAND FARMER 

 F.R.S., J. E. S. MOORE, A.R.C.S., and C. E. WALKER. (Plates 8—12) 



Page 



On the Filtration of Crystalloids and Colloids through Gelatine : with special 

 reference to the behaviour of Haemolysins. By J. A. CRAW, British 

 Medical Association Research Scholar . . . . . . 3 1 1 



332 



336 



On the Sexuality and Development of the Ascocarp of Humaria granulala 

 Quel. By VERNON H. BLACKMAN, M.A., Assistant, Department of 

 Botany, British Museum ; Late Fellow of St. John's College, Cambridge ; 

 and HELEN C. I. FRASER, B.Sc, Assistant Lecturer, Royal Holloway 

 College. (Plates 13—15) . . .354 



A Study of the Mechanism of Carbon Assimilation in Green Plants. By 

 FRANCIS L. USHER and J. H. PRIESTLEY, B.Sc, Lecturer in Botany 

 at University College, Bristol ........ 369 



A Biometrical Study of Conjugation in Paramaecium. By RAYMOND 



PEARL, Ph.D. (Abstract) 377 



PRINTED FOR THE ROYAL SOCIETY^AND.^OLD BY 

 HARRISON & SONS, 45, ST. MARTIN'S LA#E, ^LONDON;' W.C. 



, • • V ^ <*? 

 Price Four Shillings^ ^ 



No. B 518. 



March 27, 1906. 



