^ y J 



n^d., 



^ y^i 



'l^y' FOURTH REPORT 



^ vXAi'' OF THE 



WELLCOME 

 TROPICAL RESEARCH LABORATORIES 



<^ 



%1 



£n-^, AT THE 



GORDON MEMORIAL COLLEGE 

 ^ KHARTOUM 



VOLUME B.^Geiieral Science 



ANDREW BALFOUR, M.D., B.Sc, F.R.C.P. Edin., D.P.H. Camb. 



DIRECTOR 



Fellow of the Eoyal Institute of Public Health, the Society of Tropical 



Medicine and Hygiene, and the Incorporated Society of Medical 



Officers of Health ; Member of the Association of Economic 



Biologists ; Corresponding Member Societe de 



Pathologic Exotique and American Society 



of Tropical Medicine ; Medical Officer __ 



of Health, Khartoum ; etc. ^^T^ViSS^*'*" ^^^^'fujj^ 



U APR 2 7 1933 <") 

 ^ ,293961 ^^, ^' 



Published for 



Department of Education, Sudan Government 



KHARTOUM 



BY 



BAILLIEEE, TINDALL & COX, 8, Henrietta Street, Covent Garden, LONDON 



1911 



[COPYUIGHT 



