192 SPECIAL EQUINE THERAPY 



Where they had been, a white spot remained. Others 

 refused to heal even under treatment, especially those 

 near the urethral orifice. 



When the disease had been in existence for two or three 

 weeks weeping areas appeared on the neck and in the 

 crural region. These areas were from the size of a nickel 

 to a dollar and appeared at first as a moist, weeping spot 

 slightly elevated above the surrounding tissues. Within 

 a few days this took the form of an ulcer, which healed 

 kindly. The area was depigmented when healed. On 

 various parts of the trunk, and also in the gluteal region, 

 this stallion showed the typical whip-lash edema. This 

 edema was migratory, appearing in different parts at 

 times. At the end of nearly two months the most marked 

 of these early manifestations had disappeared. 



There now began to be shown a slight lack of coordina- 

 tion in the posterior limbs, beginning at first very much 

 like a case of "shivering." Within another four or five 

 weeks this had progressed to a real "wabble," so that 

 the horse had difficulty in walking in a straight line. 



Stallion 2. This was a rather small Clydesdale grade, 

 nearly ten years of age when he came to my attention. 

 From the history given by the owner he had passed 

 through the early manifestations in a typical manner. 

 When I examined him he was so "wabbly" on his hind 

 legs that in attempting to mount a mare he fell flat sev- 

 eral times, rising each time with great difficulty. The 

 glans was the seat of several depigmented areas, and the 

 urethral orifice was deformed. A microscopic examina- 

 tion of the semen showed only a few live spermatozoa. 



Mare 1. This mare was known to have had dourine 

 for several years, having infected two different stallions 

 belonging to the same owner. When I saw her she was 

 in a pitiable state of emaciation. There was a "gluey," 

 mucilaginous collection in the lower commissure of the 



