TRYPANOSOMIASIS EXPEDITION TO SENEGAMBIA 
35 
Just before leaving Bathurst we heard that a year-old colt examined and found 
to be infected in October last, was still alive. On the other hand, a similar young 
horse (Case V) in much the same condition, which was seen at the same time, died 
two months later. 
Prognosis. — We think from what we have seen that it is not impossible that 
horses may occasionally recover. 
The Diagnosis of Horse Trypanosomiasis. — Although a positive diagnosis of 
trypanosomiasis can only be made by a demonstration of the parasite, either by 
microscopical examination of suspected blood or by inoculation of that blood into experi- 
mental animals, we were in several cases enabled to diagnose the disease by the listless 
expression of the affected animal, and by the slight rise in temperature, which was 
always present. So constant is this latter symptom, that we came to regard with the 
greatest suspicion as a possible case of trypanosomiasis any horse whose temperature 
was over ioi° F. 
