CONTENTS. 



Page. 

 Constitution of the Association i 



Tables: Past Annual Meetings: — 



Places and Dates, Presidents, Vice-Presidents and Local 



Secretaries x 



Sectional Presidents and Secretaries xii 



Evening Discourses xv 



DURBAN MEETING, 1921: — 



Meetings xvii 



Officers of Local and Sectional Committees xix 



Proceedings of Nineteenth Annual General Meeting xxii 



Report of Council, 1920-21 xxiv 



Hon. Treasurer's Report and Accounts xxvii 



Fourteenth Award of South Africa Medal and Grant xxxii 



Association Library xxxiii 



Officers and Council, 1921-22 xxxviii 



President's Address: "Social Anthropology in South Africa: 

 Problems of Race and Nationality," by J. E. Duerden, 

 M.Sc, Ph. D 1 



Addresses by Presidents of Sections: 



Section A: "Stellar Distances, Magnitudes and Move- 

 ments," by Joseph Lunt, D.Sc 32 



Section B: "The Atomic Theory in 1921," by James Moir, 



M.A., D.Sc 47 



Section C : "Some Aspects of Botany in South Africa and 

 Plant Ecology in Natal," by J. AV. Bews, 

 M.A., D.Sc 63 



Section D: "Some Recent Advances in Zoology and their 

 Relation to Present-Day Problems," by 

 H. B. Fantham, M.A., D.Sc 81 



Section E: "The Claims of the Native Question upon 

 Scientists," by C. T. Loram, M.A., 

 LKB., Ph.D. ... 99 



Section F: "Observation and Proposals for the Stabilisa- 

 tion of Money Values," by W. A. Mac- 

 fadyen, M.A., LL.D , 110 



Public Lecture: "Land Connections between the other Con- 

 tinents and South Africa in the Past," by 

 - A. L. du Toit, D.Sc 120 



List of Papers Read at Sectional Meetings 140 



Papers Read and Published : — 



"Alcohol Fuels for Internal Combustion Engines," by 



W. Petchell 143 



"Notes on the Chemical Control of Cattle Dipping Tanks," 



by C. Williams, B.Sc 147 



