CONSTITUTIONAL GREASE OR HORSE-POX. 309 



in the mares, which had been served by the stallions at the breeding 

 establishment at Eieumes, belonging to M. Mazferes. M. Peuch 

 was delegated to investigate this outbreak, and he visited for that 

 purpose B6rat,. Rieumes, and Labastide-Olermont. 



At B6rat three mares were examined. In one, there were scars 

 and crusts, the remains of an eruption on the lips and in the vicinity 

 of the vulva ; in another, there were several reddish, circular ulcers 

 in the same region ; and in a third, there were dried pustules with 

 blackish adherent crusts at the circumference of the vulva and 

 extending over the perinseum. On the lower part of the left flank 

 a vesicle was discovered surmounted by a crust, and when the latter 

 was detached a sero-sanguinolent liquid oozed from the exposed 

 surface. M. Peuch recognised the true nature of this disease, 

 having several times previously had the opportunity of examirdng 

 mares with a vesicular eruption round the vulva after coition, 

 which eruption he had studied from its first appearance to complete 

 cicatrisation, and had ascertained to be horse-pox. 



On proceeding to Eieumes, M. Peuch inspected eleven stallions, 

 six horses, and five asses. In one ass there were several vesicles 

 on the right side of the penis scattered about from the base to the 

 glans. In another ass there was a trace of a vesicle on the penis 

 and a characteristic vesicle on the left nostril. 



In an old bay mare there were the remains of an eruption 

 on the circumference of the vulva, and in an old white mare there 

 were not only vesicles on the vulva, but in addition vesicles on the 

 inner side of the lower lip. ' M. Peuch drew special attention to 

 these cases as likely to be confounded with aphthous stomatitis, but 

 the existence of the same eruption on other parts of the body is an 

 important aid in making a diagnosis of horse-pox. 



At Labastide- Clermont one mare was particularly noticed. 

 This mare had been served on the 19th and 21st of April, and on the 

 occasion of the inspection, May 11th, there were the remains of an 

 eruption around the vulva, and lymphangitis existed in the right 

 posterior hmb, which was engorged, hot, and painful in its whole 

 extent, so that the animal walked with diflGiculty. The proprietor 

 had contracted the disease in attending to his mare, and exhibited 

 a vesicle on the thumb of the right hand, excoriated and blackened, 

 but still recognisable. 



Some of the crusts collected from the cases at Berat were used 

 for inoculating a cow. The result was successful, and the disease 

 was transmitted by inoculation to a heifer and several students and 

 children. 



