REPORTS OF CASES. 
275 
The appetite is lost in those cases that have been observed, 
the bowels remain nearly or quite normal, though usually a 
large amount of urine is voided, which is of a dark red color. 
The animals live from two to three days, after first being 
noticed sick, and die without a struggle. About fifteen animals 
have died of all ages from a yearling colt to a fifteen-year-old 
mare, including three young mares, suckling colts. Some 
were found dead in the pasture, and so badly decomposed 
that post-mortem was impossible. 
I have made several post-mortems, of which I report 
the following: 
No. i.—Three-year-old filly, found dead in pasture, had 
probably been dead twelve to eighteen hours ; had been in 
good condition, no external marks of violence; rigor mortis 
slight. Sore on near hind foot; removed the skin, and found 
subcutaneous tissues somewhat inflamed and blood in vessels 
liquid; some extravasation of blood into the tissues; no 
swelling up the leg or of any of the glands. In opening the 
body many hyperasmic or congested spots were observed in 
the abdominal muscles, some of these being quite extensive. 
Abdomen .—The stomach contained only a small portion of 
food, with a small amount of bloody liquid, intense inflamma¬ 
tion over the villous portion ; bowels below the stomach were 
much congested, and aside from some liquid matter in them, 
they contained a large amount of a jelly-like mass of colloid 
infiltration between the muscular and mucous coats. 
Colon covered with petechial spots on serous surface and 
much congested on mucous surface. Mesentery most intensly 
congested, though the bowel itself was not much affected ; 
congested spots over peritoneum. Liver very much inflamed, 
hard and tense to the touch, but easily broken down; when 
cut across, the cut surface presented a dirty yellow appear¬ 
ance and left a yellow exudate on the knife. Spleen enor¬ 
mously enlarged to fully five or six times its normal size, 
and filled with a black, tarry-looking blood in liquid state, 
structure very friable. Kidneys, right one normal, left one 
congested and showing numerous black spots. Bladder empty. 
Thorax .—Lungs covered throughout their entire substance 
