6 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



written on their contained species of shells. He always 

 on our expeditions took the greatest interest in the 

 dredging and sounding operations, and during the first 

 year of work presented to the Committee a Negretti and 

 Zambra deep-sea reversing thermometer for recording the 

 temperatures of the water at the bottom. 



Fig. 2. Dr. Isaac Roberts, F.R.S., F.G.S. 



Although Dr. Roberts' removal from Liverpool to the 

 South of England prevented him from taking an active 

 part in the work of the Committee, s'till he always retained 

 his interest in the work, wrote and sent appreciative 

 messages in regard to its progress, and continued to 

 encourage and support it. We are indebted to Mrs. Isaac 

 Roberts for the accompanying illustration from a photo- 

 graph of our late member. 



