CONTENTS. 



Editorial Note ... 

 Officers a^d Council ... 

 Constitution of the Association 



Tables : Past Annual Meetings : — 



Places and Dates, Presidents, Vice-Presidents and Local 

 Secretaries ... ... ... 



Sectional Presidents and Secretaries ... 

 Evening Discourses ... 



LOURENC'O MARQUES MEETING, 1922 :— 



Meetings 



Officers of Local and Sectional Committees ... 



Proceedings of Twentieth Annual General Meeting ... 



Report of Council, 1921-22 ... 



Hon. Treasurer's Report and Accounts 



Fifteenth Award of South Africa Medal and Grant ... 



Association Library ... 



Presidext's Address : ''Post-Cretaceous Climates of South Africa," 

 by A. W. Rogers, Sc.D., F.R.S 



Addresses by Presidents of Sections : 



Section A : " The Role of Astronomy in the Development of 

 Science," by M. A. Peres, Jun., D.Sc. ... 



Section B : " The Influence of Mineral Deposits on the Develop- 

 ment of a Young Country," by E. T. Mellor, D.Sc. 



Section C : " Carbon Assimilation," by D. Thoday, M.A. 



Section D : " Some Modern Developments in Animal Parasito- 

 logy," by Annie Porter, D.Sc. ... 



Section E : " Certain Aspects of the Native Question," by 

 A, W. Roberts, D.Sc 



Section F : " Remarks on certain Mental Disorders which may 

 be regarded as Preventable," by J. Marius Moll, M.D, ... 



PiTBLic Lecture : " The Early Development of South Africa," by 

 C. Graham Botha 



List of Papers Read at Sectional Meetings 



XIV 



xviL 



XIX 



xxi 

 xxiii 

 xxvii 



XXX 



xxxiv 



xxxvii 



32 



42 

 52 



64 



95 



105 



113 

 117 



Papers Read and Published :- 

 In Section A 

 Section B 

 Section C 

 Section D 

 Section E 

 J. Section F 



Index 



.120—131 

 .132—145 

 .146—232 

 .233—371 

 .372—432 

 .433—452 



458 



Argus, Johannesburg— 14143 



