Xxil APPENDIX. 



size, from iJ'5 to 2'0 inches in diameter. The impression conveyed being as if a 

 ring had been sawn in half along the circumference, and one half had, been 

 placed under the skin, thus the skin inside of the circle was flat, while the 

 circumference was raised in a semi-circular form. The trypanosorna was dis- 

 covered in the blood drawn from the centre of the plaques above mentioned, 

 thus confirming the diagnosis of Dourine in Monarch. On the 8th June, the 

 oedema previously noted as complicating the sheath only, now spread forward 

 in front of it, along the under-surface of the abdomen. On the several occa- 

 sions between the llth and 27th June, this animal covered a healthy country 

 bred cast mare No. VI, and although superficial erosions were observed on the 

 penis, no symptoms of Vesicular Exanthema subsequently followed the union 

 in the mare. The next symptom observed in the stallion was the increase in 

 size of the superficial inguinal glands which occurred on the 22nd June; further 

 observations with regard to this and other symptoms will be added later. 

 Again between the 30th June and 4th July, after the complete disappearance 

 of the erosions implicating the m. in. of the external surface of. the penis, 

 Monarch covered a second healthy country -bred cast mare No. VII on several 

 occasions, the last being on July 3rd. On the morning of this latter date, 2 

 small ulcers were observed on the glans-penis and two others on the body of 

 the organ. This last union was followed in the mare within 24 hours by an 

 eruption of vesicles and ulcers on the vaginal m. IE. and on the external surface 

 of the vulva, accompanied with a glairy viscid discharge from the passage. As 

 on the following morning, the 5th, the penis of the stallion presented memrous 

 ulcers, somewhat excavated all over the free portion of the organ. Mare 

 No. VIII, which bad been brought into season, was put to Monarch and served 

 onco. As in the case of mare VII, only in this instance, after 48 hours, an 

 eruption appeared on the vaginal m. m. and later the external surface of the 

 vulva became involved. 



Between the 5th and 7th July, the ulcers which first appeared on Monarch 

 healed, leaving white patches or cicatrices on the mucous-membrane. On the 

 8th and 9th, vesicles and ulcers were observed, some fresh and others healing, 

 while on the 10th a semi-confluent eruption exhibiting the characteristics of 

 .those already mentioned, made its appearance on the external surface of the 

 sheath. During the period which had elapsed between the 18th .June and 10th 

 July, large numbers of plaques made their appearance, some 44 in all, distributed 

 over the cutaneous surface of the body of the affected animal, and on the 

 35th of the latter mouth the right testicle increased in size, and was found 

 to be tender on manipulation, while six days later a small disseminated 

 urticarial eruption became visible implicating more or less the whole surface 

 of the body not occupied by the previously existing plaques. On the 30th July 

 film-like scabs black in colour separated from the tissue around the anus and 

 disclosed four leucodermic patches ; three more made their appearance on the 

 6th September, making seven in all, while on the 10th and 16th respectively 

 two appeared on the posterior surface of the scrotum, and on the 30th of the 

 same month one was noted for the first time on the external surface of sheath. 

 A symptom not previously noted was observed, two days after the eruption 

 of No. 81 plaque implicating the posterior surface of the left arm, the hair 



