HEALTH AND MEDICINE — GENERAL 467 



there are ferries which can be easily controlled. On the other 

 hand, on the border of Uganda adjoining the Belgian Congo in 

 the Busongora area, where the Lubilya River is easily crossed at 

 any point, control is difficult if not impossible. The Congo govern- 

 ment will not permit immigration from Uganda without a certificate 

 that the immigrant is free from sleeping sickness, but in view of 

 the fact that people on both sides of the border are members of 

 one tribe and go constantly to and fro to see friends and relations, 

 control by this system is probably impossible without a large staff 

 of inspectors. 



BRITISH 



Before outlining the systems at work in the dependencies separ- 

 ately, institutions serving the British Empire as a whole must be 

 considered. 



The London School of Hygiene and Tropical Medicine is a training- 

 ground for colonial workers, and a centre of research in entomo- 

 logy, protozoology, and helminthology, as well as in clinical medi- 

 cine, while the recent incorporation of the Ross Institute has added 

 a section for the study of practical measures for the control of 

 tropical diseases. The teaching staff are enabled to keep in close 

 touch with field progress by contacts with colonial officers on leave, 

 and sometimes by visits to the field. For instance. Professor P. A. 

 Buxton, head of the Department of Medical Entomology, paid a 

 visit to Nigeria in 1933 for research on tsetse flies [see Chapter X); 

 the late Professor J. G. Thomson, when head of the Protozoo- 

 logical Department, spent part of 1934 in Nyasaland; Dr. K. E. 

 Mellanby and Mr. Leeson went to Uganda in 1935 and 1936 

 respectively, and Dr. Jameson visited the Sudan and Uganda in 



1937- 



Attached to the school is the Bureau of Hygiene and Tropical 

 Diseases under the direction of Dr. Harold H. Scott, which is 

 maintained by the Colonial Office, and has as its principal func- 

 tion the collection, from all sources, of information on hygiene and 

 tropical diseases. It collates, condenses, and, where necessary, 

 translates the information, and makes it available by means of two 

 monthly periodicals, the Tropical Diseases Bulletin and the Bulletin 

 of Hygiene, in which abstracts of all the important technical papers 



