CONTENTS. XXV 



Page 



2. Oil the Formation of Bacterial Colonies. By Professor Maeshall 

 Waed, F.R.S 854 



3. On a Supposed Case of Symtiosis in Tetraplodon. By Professor F. E. 

 Weiss 855 



TUESDAY, SEPTEMBER 17. 



1. On Amber. By Dr. Conwentz, Danzig 855 



2. The Wealden Flora of England. By A. C. Sewakd 856 



3. On the Diurnal Variation in the Amount of Diastase in Foliage Leaves. 



By Professor J. Reynolds Geeen, F.R.S 856 



4. On the Structure of Bacterial Cells. By Haeold Wagee 856 



5. On the Prothallus and Embryo of Danaga. By G. Beebnee 857 



6. On Cross- and Self-fertilisation, with special reference to Pollen Prepotency. 



By J. C. Willis 857 



Index 859* 



