XVI 



PRESIDENTS AND SECRETARIES OF THE SECTIONS. 



EVENING DISCOURSES. 



19 ID. Cape Town . . 

 191 1. Bulawayo 



1912. Port Elizabeth 



1913. 

 1914. 



Lourengo 



Marques 

 Kimberley 



1915. Pretoria 



Prof. H. Bohle. M.I.E.E. 

 J. Brown, M.D., CM., 



F.R.C.S., L.R.C.S.E. 

 W. H. Logeman, M.A. 

 A. AV. Roberts, D.Sc, 



F.R.A.S.. F.R.S.E. 

 Prof. E. J. Goddard, B.A., 

 D.Sc. 

 S. Seruya. 



Prof. E. H. L. Schwarz, 

 A.R.C.S., F.G.S. 



E. T. Mellor, D.Sc, 

 F.G.S., M.I.M.M. 



C. W. Mally, M.Sc, 

 F.E.S., F.L.S. 



The Conquest of the Air. 

 Electoral Reform — Prapor- 



tional Representation. 

 The Gyroscope. 

 Imperial Astronomy. . 



Antarctica. 



The history of Portuguese 

 conquest and discovery. 



The Kimberley Mines, their 

 discover}', and their rela- 

 tion to other volcanic ,yents 

 in South Africa. 



The gold bearing conglomer- 

 ates of the Witwatersrand. 



The House fly under Soutli . 

 African conditions. 



