BELFAST 

 NATURAL HISTORY AND PHILOSOPHICAL SOCIETY. 



PROCEEDINGS, 



lOOTH SESSION 1920-1921. 



No. 1. 



5th October, 9th November, 14th December, 1920. 



MANY INVENTIONS: A STUDY LN NATURAL HISTORY 



BY PROFESSOR J. ARTHUR THOMSON. 



THE TREND OF EVOLUTIONARY THOUGHT. 



BY PROFESSOR CiREGG WILSON. 



THE BIRDS OF HILLSBOROUGH. 



BY NEVIN H. FOSTER, F.L.S., M.R.I. A., M.B.O.U. 



BELFAST : 



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



(PRINTERS TO THE QUEER'S UNIVERSITY). 



