REPORTS OF CASES. 
765 
also ^ not bright, being rather without expression, somewhat 
stupid, though when calling him the horse will lift his head 
and listen. 
When at his feed the horse performs mastication rather slow 
and with frequent intermissions. 
In order to make the examination,perfect, I had the horse 
hitched np and put him before a wagon. Then I gave the 
horse a good drive from downtown (9th Street) up to Sad Street. 
There I noticed a pronounced attack of vertigo. I had to stop 
the horse for several minutes until he got over it. 
I drove the horse back and examined him thoroughly again, 
after having him brought to a perfectly quiet place. I watched 
the horse for several minutes ; it appeared to be drowsy, paying 
no attention to the surroundings, off and on moving the ears 
irregularly, the head being dependant. I put my hand into his 
ears, a manipulation which the animal did not object to at all. 
Thereupon I lifted the right leg and crossed the same over the 
left one in front, then putting the right leg to the floor so that 
the horse stands on its front legs in a crossed position. In this 
position I kept the horse for a minute and a half, in which time 
it never tried to retake the normal position. I stepped several 
times on the coronet, the animal not pulling its legs from un¬ 
der. After this examination I took the horse by the bridle and 
talked to him, trying to back him up. He showed only slow 
reaction and it was rather hard to back him up. 
The examination took about half an hour. During this 
time the respiration had become perfectly normal, the pulse 
beating 32 times per minute. The pupils appeared consider¬ 
ably dilated. According.to the result of my examination I was 
sure about my diagnosis, which was chronic hydrocephalus, in¬ 
cluding the possibilities of either cholestratomata of the vascular 
plexuses or some other tumor, or a parasite or exostosis on the 
internal surface of one of the cranial bones. 
I told the owner my diagnosis and also the prognosis. I ex¬ 
plained to him that the horse might stay this way for years, 
without getting worse, that during cooler weather an improve¬ 
ment might show itself, but that on the other hand the condi¬ 
tion of the animal might all at once become very serious, so that 
lie could not run the risk of driving the horse any Ion ger. The 
owner took my diagnosis with much disappointment, as I 
noticed ; he wanted me to do something for the animal to im¬ 
prove his appetite and condition. So I gave the horse a tonic 
combined with stomachics. The appetite improved and also 
