Mosquito or Man? 



PART I 

 CHAPTER I 



FOUNDATION OF THE TROPICAL MEDICINE 

 MOVEMENT IN ENGLAND 



Undoubtedly it is to the genius of Pasteur and to 

 his discoveries in Bacteriology and Epidemiology 

 that we must ascribe the foundation of the present 

 investigations in animal Parasitology and their applica- 

 tion to the cure and prevention of tropical diseases. 

 The genius of Pasteur lay in its comprehensive grasp, 

 in its faculty of being equally able to direct scientific 

 research to the advantage of both commerce and indus- 

 try, as well as to the alleviation of suffering. In effect, 

 the great movement which he initiated and the great 

 store of thought which he called into existence in the 

 seventies has proved to be one of the great sources of 

 supply associated for all time with the cause of humanity 

 and the world's progress. 



The advent of the experimental method so closely 

 identified with Pasteur and his school pushed traditional 

 medicine to one side and allowed scope for a freer and 



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