152 



Researches Regarding Cholera : the Blood. 



[part I. 



due to mechanical action. These particles were as abundant in the abortive case as in 

 any of the others, and were least abundant in the two successful ones, none being present 

 in the specimens from one and very few in those from the other of these ; and, as 

 they have been already mentioned as occurring in specimens of blood obtained from 

 healthy individuals, they do not appear to demand further consideration here. 



TABLE III. 



Microscopic characters of Vaccinial Blood. 



Distinct bacteria were absent throughout the whole series, and although fungi 

 occurred in three instances, they were not developed until after uncertain intervals, 

 did not belong to the same species in the several instances, and were not confined to 

 the same case, so that their extraneous origin was evident. 



Specimens of blood from cases of syphilis were next examined, but in these also no 

 foreign organisms could be detected. It was thus manifest that as the blood in these 



