162 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



By Professor Cockereil : Albino specimen of H. pisana from Porto 

 Santo. 

 1 \ By Ool. Peile : Shells from Ga^llLpoli. 



By Mr. Cooper : A large series of British Albinos and Deformities. 



By Mr, Salisbury : Limncea auricularia var. alba from Uxbridge. 



ORDINARY MEETING. 



Friday, 10th June, 1921. 



G. K. GuBE, F.Z.S., President, in the Cliair. 



The following communications were read : — 



1. "Notes on Pearl Formation and Japanese Culture Pearls." 

 By T. H. Haynes. Illustrated by a series of lantern slides. 



2. " Note on some species of Pisidium : Addendum." Bv 

 B. B. Woodward, F.L.S. 



3. "The MoUusca as material for Genetic research." By G. C. 

 Robson, B.A., F.Z.S. 



Dr. Trechmann exhibited a fine shell of Pleurotomaria 

 adansoniana. 



Mr. B. B. Woodward exhibited a series of bivalves from Caldey, 

 received from Mr. Wintle. 



