io SCIENCE 



Chemistry and the Biological Sciences have 

 contributed more than their full share, and 

 though I cannot claim to speak with first hand 

 knowledge of the achievements of medical 

 science, I must mention some facts for which 

 I am indebted to the kindness of Surgeon- 

 General Sir Alfred Keogh and Colonel Webb, 

 who informs me that the annual admission 

 ratio for all causes other than wounds in 

 action in France is approximately 428 per 

 1000. In the following campaigns the corre- 

 sponding ratios were: 



South Africa 843 



Nile, 1884-5 557 



Egypt, 1882 2276 



China, 1900-1 ... 933 



Nile, 1898 955 



Dongola, 1896 ... 892 



In France the annual admission ratio for 

 typhoid fever is 0-9 per 1000, and for the whole 

 typhoid group of diseases 2-4 per 1000. 



