PREFACE TO THE SECOND EDITION 



The favour with which this work has been received, 

 and the demand so soon for a second edition, are 

 evidence that the PubHc is interested in the Health 

 Progress of the Tropics. 



In this Edition 1 have made some additions, 

 amongst which is a chapter on Parasitism, a subject 

 which is every day receiving more attention. 



My Indian critics have taken exception to the 

 little I have said regarding their Peninsula. I am, of 

 course, well aware that India has made substantial 

 progress according to old standards, that it has 

 been the home of many great medical men, and that 

 it has produced a vast quantity of bulky health and 

 other reports. But it has not accomplished anything 

 which can compare with the lasting victories won 

 over disease in the yellow-fever zone, whether in the 

 Pepublic of Cuba, Panama, British Guiana, Brazil, 

 or in many of the West Indies ; victories rendered 

 all the more striking by reason of the immense 

 difficulties which had to be o\'ercome in the form of 



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