MALARIA — ^WATSON 349 



Historians are divided about the character of Alexander, and 

 whether this intrusion of Greek arms and philosophy into the culture 

 and religion of the East was all for the best. That I am not compe- 

 tent to discuss. Nor need I speculate on what difference it would have 

 made had fever not cut short the life of this conqueror, and whether 

 he would have become an equally great administrator. 



But there is no difference of opinion about the debt mankind owes 

 to Ronald Ross. I have told you something of how our nation has 

 employed Ross's discovery. Much still remains to be done to prevent 

 tropical diseases. There is still much to be discovered about malaria 

 and its prevention. But in scientific research and practical preven- 

 tion of malaria from 1901 to the present day, the British have given a 

 clear lead to the world. 



Though they have not done all, they have done something of what 

 Sir Patrick Manson urged. I think we can justly claim that the 

 British have not been unfaithful to their trust. And if we turn to an 

 impartial witness such as Professor Swellengrebel we have his assur- 

 ance that the work done in Malaya has been of gi-eat benefit to the 

 world ; without what has come to be known as "species sanitation" the 

 fight would have been hopeless. So that Malaya, in this time of trial, 

 can feel that she has achieved something of lasting benefit. 



REFERENCES 



Chbistophers, S. R. 



1920-1921. Malaria in Mesopotamia. Indian Journ. Med. Res., vol. 8, pp. 

 508-552. 



1933. The fauna of British India. Diptera, vol. 4. London. 

 Dixon, J. R. 



1935. Building the lower Zambesi Bridge. Journ. Roy. African Soc, April. 

 Encyclopedia Bkitannica. 



1929. Article on Alexander the Great. 14th ed., pp. 566-571. 

 Macfadyen, E. 



1938. Address at the Manson-Ross Luncheon. Ann. Rep. London School 

 Hyg. and Trop. Med., 1937-1938, p. 98. 

 Manson-Bahr, p. H., and Alcock, A. 



1927. The life and work of Sir Patrick Manson, p. 154. London. 

 Ramsay, G. C, and Macdonald, G. 



1936. The species control of anophelines in India. Indian Med. Gaz., vol. 71, 



No. 12, pp. 699-710. 

 Stbickland, C. 



1915. Certain observations on the epidemiology of malarial fever in the 

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 Medical Report for 1914, pp. 21-30. 



SVTEXLENGEEBEL, N. H. 



1935. Address, League of Nations Malaria Course, Singapore. 



SWELLENGEEBEL, N. H., and DE BUCK, A. 



1938. Malaria in the Netherlands. Amsterdam. 

 Thh Times. 



1934. The Zambesi Bridge. London, Oct. 31. 



