REPORT OF CASES. 
713 
the night, I left her, and was very much surprised the next 
morn mg to find her still alive. The owner being willing I de¬ 
stroyed her at once, and held a post-mortem. 
When ready to destroy her, I was for a time puzzled as to the 
manner m which I had better do it, as I did not wish to injure 
the bram, and I was afraid that I might lose the congestion if I 
bled her. However I opened the carotid and jugular, and ran 
1S n ? k ' aJ, observed tliat the blood was somewhat darker than 
normal. The pharynx was filled with a wad of fodder precisely 
.1 " e f: a 3 * The oesophagus was normal, the stomach and small 
intestines were empty and whitish in appearance ; the laro-e in¬ 
testines were normal and contained hardened faeces. Thelblad- 
der was full but I failed to save the urine. The other organs 
vyere normal m appearance. I then exposed the brain and a 
little of the spinal cord. The vessels of the meninges of the 
brain and a little of the cord were engorged with blood 
Naturally that on the lower side was more pronounced, owing to 
he position of the animal. After nearly three months presefva- 
tion m alcohol this engorged condition is very marked. 
After holding the post-mortem, the owner of the place and 
myself went over the farm to try to locate the cause of the trou¬ 
ble. 1 he farm contains something over 1600 acres, and 
Jhis pasture lots, as he called them, were good sized farms in 
themselves That particular lot, where his horses had last been, 
I found high and sloping, with a southeast exposure. Compar¬ 
atively little of this was marshy, but this marsh contained the 
spring and quite a little grass. As this place was cool, I con¬ 
cluded that the animals spent most of their time there. Since 
that time, the gentleman has written me, he thinks thev drank 
at a place where there were about 40 hogs, that they kept the 
water 111 a filthy condition and thus contracted the disease. As 
evidence, he says “all his carriage horses and those work horses 
thatwere watered at the well, did not contract the disease ” 
The general symptoms, taking those two seen by me as 
typical of all, were as follows : The animals at first appeared 
droopy, and rapidly got weak. They were apparently unable to 
swallow food or water. The weakness increased and seemed to 
affect more especially the hind quarters. Constipation was 
marked. Finally the animals dropped, and I noticed a very pe¬ 
culiar condition ; they all left traces of having indulged to a 
greater or less extent; while lying they continued to move both 
ront and hind legs as if in the act of progression, and in so do¬ 
ing scooped out earth to the depth of ten or twelve inches. In the 
