INDEX 



251 



Water, colon bacilli in, 206 

 diseases transmitted by, 68, 



205 



dysentery bacillus in, 206 

 examination of, 207 

 purification of, 205 

 typhoid bacilli in, 119, 205, 



206 



fever from, 119 

 Whooping-cough, 147 



Bordet-Gengou bacillus in, 



147 

 general description of, 147 



Widal reaction, 74, 123 



collection of blood for, 82 



YEASTS, 22, 194 

 diseases due to, 195 

 general description of, 194 

 pathogenic powers of, 195, 196 

 relation to blastomycosis, 195 



Yellow fever, 68, 231 



mosquitoes in, 68, 231 



