318 



SUBJECT INDEX 



Typhoid, preliminary enrichment 

 of, 79. 



separation by motility, 85. 



small numbers in water, 92. 



summary of isolation methods, 

 86. 



uncultivated strains in water, 24. 



viability in mud, 24. 



viability in sewage, 16. 



viability in water, '15. 

 " Typical" B. coli, 176. 



Unpolluted waters, body tempera- 

 ture count in, 68. 

 Urea, decomposition of, 3. 



Voges-Proskauer reaction, 180. 



Waters, classification of, 5. 

 Wells, bacteria in, 26, 56. 



B. coli in, 26, 162, 163. 



deep, 27. 



