766 
REPORTS OF CASES. 
after four weeks I could notice a slight improvement in his con¬ 
dition. During these four weeks I examined the urine of the 
animal several times and found the urine of low specific gravity, 
sometimes of higher specific gravity. In the course of those 
changes I distinctly noticed a difference in the clinical symp¬ 
toms ; the latter being always less pronounced when the urine 
showed low specific gravity. This could only be derived from 
circulatory troubles within the kidneys, most probably due to 
functional troubles of certain vasomotor centres. About five 
weeks after my first examination I was requested to call as quickly 
as possible as the horse had dropped down and was not able to 
get on his legs. This sudden change was rather to my satisfac¬ 
tion. When I arrived the stableman told me that while he was 
walking the horse all at once, as he said, the animal got on its 
hind legs, made a dive through the air and landed on its 
knees and head; since he had made several trials to get on his 
legs, but was unable to do so. The horse was lying on the right 
side. After I had satisfied myself that no fracture of any bone 
was there, I proceeded to follow the regular course of examina¬ 
tion. Temperature of the cranium considerably increased; 
temperature per rectum 103° F., yet pulse beating only 38 times, 
pupils very much dilated. Look is staring, without ex¬ 
pression, stupefied. Very high pulse of the jugular vein, how¬ 
ever, negative ; heart shock is arhythrnic. The animal showing 
off and on regular convulsions. I injected hypodermically 
small doses of camphor and ether and ordered continuous cool¬ 
ing of the head with ice water. When I called back after two 
hours the horse was on his legs. He was put in a sling, being 
very drowsy and apparently weak on his front legs. I drew off 
the urine, which was rather concentrated and of comparatively 
high specific gravity ; it contained small quantities of albumen. 
However, the animal was able to walk to his box the same night 
without help. For the next four days the horse showed symp¬ 
toms similar to those of an acute l3^stomeningitis ; the tem¬ 
perature being between 104-105° F ; the cranium being very 
hot, head lowered down almost to the floor, standing most of 
the time in one corner, off and on running alongside the boards 
of the box stall. 
I knew that it was not a case of acute hydromeningitis, but 
only an acute paroxysm, which is quite frequently to be ob¬ 
served during chronic hydrocephalus. This paroxysm occurred 
during the hot spell of September. No medicine was adminis¬ 
tered, the treatment consisting only in cooling* the head and 
