376 CLINICAL VETERINARY' MEDICINE AND SURGERY. 



two days before death), and especially the absence of digestive disturb- 

 ance, were explained by the seat of the lesion : the cardia remained 

 patent, and the left portion of the stomach sufficiently wide to permit 

 food to pass, while the mucous membrane of the right cul-de-sac was 

 normal. 



The clitoris showed a reddish, mammilated tumour, the size of a 

 nut, of the same nature as that in the stomach. 



The growth was a pavement epithelioma. Microscopically examined 

 it appeared formed of a fibrous stroma and masses of epithelial cells 

 arranged in anastomosing bands and large lobules, the centres of which 

 were occupied by spherical groups of cells undergoing cornification 

 (epidermal nests). 



ABSCESS OF THE LIVER IN THE HORSE. 



87. An eleven-year-old grey Persian mare, first admitted to hospital 

 15th May, i8g8. The animal was very dull, but showed no other 

 symptoms; w^as treated for simple fever, and discharged to duty 21st 

 May. 



Readmitted 7th September. Since the previous treatment had been 

 dull and disinclined for food. 



State on Examination. — Appetite entirely in abeyance ; signs of li^'er 

 disorder, membranes yellow, fever, intense dulness ; pulse 50, respira- 

 tions 20. 



Treatment. — Tonics and nourishing food. 



By the 31st May the animal had improved, but the membranes 

 were paler and more anaemic. Considerable bodily wasting had 

 occurred, the urine was brownish and very offensive, but free from bile 

 or albumen ; fseces normal. The most careful examination of all 

 accessible organs revealed nothing. 



On the 3rd October the faeces were dark in colour, very offensive, 

 and contained much mucus. Urine free of albumen or bile. 



On the gth the animal fell and remained down in its box for 

 two hours, rising again of its own accord ; this was the only occasion 

 on which it ventured to lie down. 



On the 15th muscular wasting was intense, the pulse quicker, 

 respirations increased ; the case was evidently sinking. 



On the 17th and i8th the animal walked aimlessly round its box ; 

 pulse imperceptible ; early on the morning of the 19th it died. 



Autopsy. — On opening the abdomen about two quarts of inspissated 

 pus mixed with serum escaped ; peritoneum inflamed and covered with 

 lymph ; the transverse colon and extremity of caecum were highly 

 inflamed, preparatory to adhesion, for the right portion of the double 

 colon was already firmly attached to the abdominal wall. The liver 

 was mottled, and its entire anterior surface adherent to the diaphragm ; 

 it weighed 20 lbs. The hepatic lobules were swollen and engorged with 

 blood. On section the organ appeared gritty ; the right lobe contained 

 a large abscess, the contents of which had burst into the peritoneal 

 cavity ; the walls of this abscess varied in thickness, measuring at 

 places three or four inches, and at others being as thin as paper; 



