438 



THE BACTERIOPHAGE AND ITS BEHAVIOR 



The results of these examinations appear in table 60, the designations, 

 I, II, and III, referring to the three persons mentioned above. 

 The marked change in the virulences of the intestinal bacteriophage, 



July 4 



July 5 



July 6 



July 7 



July 8 



September 27 

 September 28 

 September 29 

 September 30 

 October 1 . . . . 

 October 2.... 

 October 3. . . . 



+ + + 



+ + 



+ + + 



+ + 



+ 



+ + + 



+ + + 



+ + + 



+ + 



+ 



+ 



+ 



DTSENTERIAE 



Shiga 







+ 

 + 





 



++ 

 + 





 

 

 

 



Flex- 

 ner 



+ + + 



+ + + 



+ + 



+ + 







+ 





 

 

 

 

 



Hiss 



++ 

 + 

 + 





 



+ 





 

 

 

 

 



'^^J??°" Para A Para B 





 

 

 

 



++++ 



++++ 



++ 



+++ 



+++ 



+ 







C = B. coli: H 

 paratyphosus B. 



B. dysenteriae Hiss; Sh. = B. dysenteriae Shiga; B = B. 



as observed here, can not fail of being significant, for we find here, that 

 upon the occurrence of the slightest intestinal disturbance the virulence 



