250 CLINICAL VETERINARY MEDICINE AND SURGERY. 



Next day, and the day following, the animal was several times 

 lifted, but was unable to remain standing ; it was therefore placed 

 on a deep bed of straw and turned over morning and evening ; 

 food and drink were frequently offered ; the urine was drawn off by 

 catheter, and the rectum from time to time emptied. In spite of all 

 our care the symptoms became aggravated. On the evening of the 

 third day great excitement set in ; the mucous membranes were 

 cyanosed, the body covered with sweat, the respirations ver}- rapid 

 and embarrassed ; the pulse rapid, small, and thready, and the tempe- 

 rature rose to 40*3° C. (104-5° F.). Death occurred during the night. 



On post-mortem examination you were struck by the change in the 

 muscular tissue. The muscles of the croup, quarter, buttock, and 

 sublumbar region were swollen, discoloured, yellowish, infiltrated, and 

 at points ecchymosed. The longissimus dorsi, pectoral muscles, and 

 the extensors of the forearm showed similar though less marked 

 changes. Both kidneys were slightly enlarged. On section the 

 cortical layer appeared hypersemic, infiltrated, and haemorrhagic ; the 

 medullary layer, where in contact with the cortex, was injected, but 

 towards the pelvis was of a yellowish tint. The bladder contained a 

 little blackish urine. The nervous centres showed no important 

 lesions, though the -spinal cord was slightly congested, especially 

 opposite the commencement of the cauda equina. The intestine was 

 hyperaemic at places; the liver large and the colour of a dead leaf; the 

 spleen swollen, deformed by several rounded enlargements, below 

 which its tissue was softened and haemorrhagic ; the left lung hypo- 

 statically congested and infiltrated ; the myocardium discoloured and 

 yellowish ; the endocardium marked with a few ecchymoses ; the blood 

 uncoagulated, blackish, and slightly gummy. But these latter are 

 accessory lesions, and, moreover, inconstant. 



Last week you saw an eight-year-old gelding belonging to a market 

 gardener of Maisons-Alfort recover from the same disease. Like the 

 preceding case, this horse had been kept in the stable for two days, and 

 after breakfast on the 27th December was harnessed to draw some 

 vegetables to Paris. The weather was cold, the thermometer marking 

 6 degrees below zero C. (22° F.). The horse walked from Maisons- 

 Alfort to Alfort, about one and a quarter miles. In passing over 

 Charenton bridge it relaxed its speed, and suddenly went lame on the 

 off hind leg. A little further on it stopped, apparently suffering from 

 slight colic. The driver let it rest for a few minutes, rubbed the abdo- 

 men with a wisp of straw, and then as the pain diminished resumed his 

 journey. 



