CARCINOMA-MELANOSIS. 461 



it was inferred that the horse had internal haemorrhage, 

 hepatirrhoea. 



" At night there was profuse sweating ; wandering about 

 with tottering gait ; sighing ; pulse not to be distinguished ; 

 membranes quite blanched ; respiration much accelerated. 



" 14th. — Lips cold; no pulse; respiration quiet; extreme 

 prostration ; vision unaffected. The horse died at ten 

 o^clock A.M. 



"Post-mortem examination. — On laying back the skin, 

 many deposits of black, circumscribed lumps were observed 

 in the cellular membrane of the groin, and likewise in the 

 cellular and adipose membranes, between the different layers 

 of the abdominal muscles, and also upon the peritoneum. 

 On removing the peritoneum, and the layer of fat upon it, 

 the intestines appeared blanched, but studded with melanotic 

 tumours beneath the peritoneal coat, in the course of the 

 muscular bands ; also attached upon the peritoneal coat were 

 small fringes of melanosis, staining, as usual, the finger or 

 part rubbed against it. 



" The spleen now presented itself of an enormous size, 

 extending half-way down the abdomen towards the pelvis, 

 but not far enough to be felt by the hand introduced within 

 the rectum : when removed it weighed sixty- seven pounds, 

 and when cut into exhibited the usual softened melanotic 

 mass. This distension of the capsule of the spleen had 

 caused a rent on the concave edge of the organ, from which 

 the quantity of blood observed in the cavity of the belly 

 had distilled, occasioning death from hccmorrhage. The 

 liver was of the natural size, and its external coat was entire; 

 but the surface was irregularly elevated, and on the section 

 of different parts these elevations proved to be circumscribed 

 melanotic tumours. In the omentum, and about the kid- 

 neys, were similar effusions, but none in the texture of the 

 gland itself; similar tumours were also found on the brim 

 of the pelvis, a common situation for melanotic tumours in 

 grey horses. The heart and lungs were not examined." 



