138 The Farmer's Yeterina/ry Ad/uiser. 



agated by copulation. I name it here because of the 

 probability of its importation with European or Arabian 

 horses. (It is already reported in Percherons, in Illinois 

 and Montana.) 



Symptoms. From one to ten days after copulation, or 

 in the stallion sometimes after some weeks, there is irri- 

 tation, swelling, and a livid redness of the external organs 

 of generation (in stallions the penis may shrink), followed 

 by unhealthy ulcers which appear in successive crops, often 

 with considerable interval. In mares these are near the 

 clitoris, which is frequently erected, with switching and rub- 

 bing of the tail ; in horses on the penis and sheath. In the 

 milder forms there is little constitutional disturbance and 

 the patients recover in a time varying from a fortnight to 

 two months. In the severe forms the local swelling in- 

 creases by intermittent steps. The vulva is the seat of 

 a deep violet congestion and extensive ulceration, pustules 

 appear on the perineum, tail, and between the thighs, 

 the lips of the vulva are parted, exposing the irregular, 

 nodular, puckered, ulcerated, and lardaceous-looking mu- 

 cous membrane, abortion ensues, with emaciation, lameness, 

 paralysis, and death after a wretched existence of five 

 months to two years. In horses swelling of the sheath 

 may be the only symptom for a year, then there may follow 

 dark spots of extravasated blood, or swellings of the penis, 

 the testicles may swell, a dropsical engorgement extends 

 forward beneath the abdomen and chest, the lymphatic 

 glands in different parts of the body may swell, pustules 

 and ulcers appear on the skin, the eyes and nose run, a 

 weak and vacillating movement of the hind limbs gradually 

 increases to paralysis, and in a period varying from three 

 months to three years death puts an end to the suffering. 



It is needless to speak of treatment. This disease ought 

 to be stamped out at once, as its insidious nature enables it 

 to spread to the great destniction of stock. 



