DOUEINE 193 



vulva; the clitoris was very prominent and hypertro- 

 phied. One side of the vulva and spotted areas on and 

 near the clitoris were depigmented. Although very ema- 

 ciated and lacking good coordination of movement, this 

 mare appeared to be a nymphomaniac, accepting the 

 service of the horse promiscuously. 



Some writers claim to have seen the development of the 

 secondary symptoms — ^laek of coordination, etc. — ^without 

 any marked local lesions primarily. 



Microscopic diagnosis should be called for in all sus- 

 pected cases of dourine. The parasites exist in the blood 

 and secretions. They are said to disappear very rapidly 

 after the death of the animal; postmortem microscopic 

 diagnosis would therefore be unreliable. Antemortem, 

 a blood smear is to be made, using Romanowskie's stain. 



With the present system of eradication in use by the 

 Bureau of Animal Industry against this disease, dourine 

 will ultimately be completely eradicated. The system- 

 atic inspection of imported horses of European origin 

 will do much to prevent the bringing in of new cases. 

 At the present time the disease seems to be well controlled 

 in the United States. 



