BELFAST 

 NATURAI. HISTORY AND PHILOSOPHICAL SOCIETY. 



PROCEEDINGS, 



SESSION 1919-1920. 



No. 3. 



ISth January^ 



12th March, and 25th March, 1920. 



THE GREAT CHEMIST, JOSEPH BLACK : 

 HIS BELFAST FRIENDS AND FAMILY CONNECTIONS. 



By henry RIDDELL, M.E., M:LMech.E. 



THE USE OF COLLOIDS IN DISEASE. 



By ALFRED B. SEARLE. 



A NATURALIST'S WANDERINGS IN NYASALAND. 



By PROFESSOR ROBERT NEWSTEAD, F.R.S. 







BELFAST : 



MAYNE, BOYD & SON, LTD., 2 CORPORATION STREET 



(PRINTERS TO THE QUEEN'S UNIVERSITY). 



1920. 



