DOURINB 191 



saw happen at this meeting of experts, I came to lose all 

 faith in them. 



Certain parties, whose identity must remain secret, 

 made it an issue to fool the expert diagnostician from the 

 very beginning, and he remained "fooled" throughout 

 the experiments. Since that time, however, the disease 

 has become better understood in most of its phases, espe- 

 cially during the past four or five years; and its diag- 

 nosis is frequently made, clinically, by many practition- 

 ers. The period of incubation may be as short as one 

 week. Under some conditions it may be six weeks. 



The symptoms as I give them here are as observed by 

 me personally in two cases in the stallion and one case 

 in the mare. 



Stallion 1. This was a pure-bred imported Percheron 

 horse five years of age. The first symptom calling atten- 

 tion to his case was frequent urination. This began two 

 or three weeks after he had served the mare whose case is 

 hereinafter reported. When the penis was protruded in 

 the act of urination it was noted that the urethra was 

 very prominent, appearing congested and flattened later- 

 ally around the orifice. At the same time an edematous 

 swelling began to appear in the sheath, which progressed 

 quite rapidly and involved the true prepuce to such an 

 extent that a degree of paraphimosis resulted after a few 

 days. The swelling in the sheath was smooth and doughy 

 and characteristically edematous. Within a day or two 

 after the paraphimosis developed the glans penis became 

 the seat of a process simulating a moist eczema. 



On the anterior face of the glans, close to the urethral 

 orifice, appeared what can best be described as a chancre, 

 which broke down at the end of four or five days and 

 formed a deep ulcer. Other similar chancres appeared 

 on various parts of the penis during the course of the 

 next week. Some of these healed over with rapidity. 



