Ill 



CONTENTS. 



FAQE 



Officers and Council, 1929-;)0 v 



Executive Committee for the Meeting in South Africa, 1929 . . vii 



Sectional Officers, South Africa, 1929 viii 



Annual Meetings : Places and Dates, Presidents, Attendances, 

 Receipts, Sums Paid on Account of Grants for Scientific 

 Purposes (1831-1929) x 



Report of the Council to the General Committee (1928-29) .... xiv 



Resolutions and Recommendations (South African Meeting) . . xxi 



General Treasurer's Account (1928-29) xxiii 



Research Committees (1929-30) xxx 



Narrative of the South African Meeting xxx\i 



The Presidential Address of the South African Association : 



Africa and Science. By Jan H. Hofmeyr 1 



The Presidential Address of the British Association : 



The International Relationship of Minerals. By Sir Thomas H. 



Holland 22 



Sectional Presidents' Addresses : 



A. — Some Problems of Cosmical Physics, solved and unsolved. By 



Lord Rayleigh 38 



B. — The Relation of Organic C!hemistry to Biology. By Prof. G. 



Barger 51 



C. — The Utility of Geological Surveys to Colonies and Protectorates 



of the British Empire. By Sir Albert E. Kitson 64 



JJ.— Adaptation. By Prof. D. M. S. Watson 88 



E.— National Surveys. By Brigadier E. M. Jack U>() 



E. The Public Regulation of Wages in Great Britain. \iy Prof. 



Henry Clay 119 



