v.] VARIOUS SPECIES OF COMMA-BACILLI. 99 



choleraic comma-bacilli direct into the duodenum) ; and in 

 his third paper l he gives the results of a series of successful 

 experiments on guinea-pigs. In both instances mention is 

 made of the multiplication of the injected choleraic comma- 

 bacilli in the intestines of the guinea-pigs experimented upon, 

 but I find no evidence that he had first sought for the 

 presence of comma-bacilli in the contents of the intestines 

 of normal guinea-pigs. 





FIG. 33. PLATE-CULTIVATION OF THE SAME NON-LIQUEFYING COMMA-BACILLI 



OF NOMA AS IN FlG. 32. 



The plate-cultivation is several weeks old. The drawing represents the colonies as 

 seen under a lens. The colonies marked by uniform shaping are situated in 

 the depth. 



Van Ermengem 2 givesa figure (PI. XI. Fig. i) of comma- 

 bacilli in the intestinal contents of a guinea-pig that died 

 after intraduodenal inoculation, and he describes them 

 (p. 372) as " grandes virguhs fortement incurvees et d 1 aspect 

 assez anormal" He tells us 3 that he found comma-bacilli 

 in the large intestine of guinea-pigs, but they are much 



1 Conferenz zur Eroi'teriin^ der Cholera/rage : Berlin, May 

 - Recherckes sur le microbe du Cholera Asiatique. 

 3 Loc. cit. p. 87. 



H 2 



