11 
wa}" the bodies above described as being found in the fresh and stained 
ijlood of persons sutfering' from spotted (tick) fever. 
In the cases of spotted (tick) fever which 1 had the opportunity of 
examining- I had no great difficult}^ in finding both in fresh and stained 
preparations the bodies above described. Their constanc^^in the blood 
of persons sufiering with spotted fever, their persistence for some time 
in the blood of these persons after recoveiw, their absence from the 
blood of pei’sons sufiering from other diseases and of health}^ persons 
makes it very probable that the}" are the cause of the disease, and that 
one more has been added to the rapid!}" growing list of diseases of man 
due to animal parasites. 
Cultures were made by Wilson and Chowning and by myself from 
the blood of patients during life and from the organs and tissues at 
autopsy, and the onl}" bacterial growth obtained was Staphylococcus 
epidermidis albus^ Staphylococcus pyogenes aureus and alhus^ Bacillus 
coli^ and in one case an anaerobic spore-bearing organism was obtained 
from the spleen. No one organism was constant, and from some cases 
no growth at all was obtained. 
In the table which follows is gathered a complete collection of all 
the cases which have been reported by the physicians of western Mon- 
tana since 1885, when the disease first attracted attention. Cases 1 to 
IIT were compiled by Wilson and Chowning and the remaining cases 
by myself. 
