348 
N. E. REINHART. 
inches in length, and considerable bronchitis. The pericardium 
contained, in one or two instances, from 1 to 1£ ounces of fluid, 
very clear and transparent. On making vertical section of head, 
found a quantity of pus around the turbinated and ethmoid 
bones, the mucous membrane of the same congested very much. 
In one case the ethmoid was carious and the larvae were working 
their way toward the brain. 
OSTEO-POROSIS. 
By N. E. Reinhart, V.S. 
I met this disease in a horse not quite five years old, the 
property of a gentleman who had never worked or driven the 
lioise haul. Jo use his own language, the horse never did a 
day s woi k in his life. Ilis object was to let him mature and 
become a horse before lie put him to hard work. The first symp¬ 
toms were hock lameness, and spavin was suspected and treated 
as such, with apparent recovery. When the other hock became 
affected, he began to show a defect in masticating his food. He 
would chew grass and let it fall from his mouth in quids all 
around him, swallowing none. Fluids could be taken, but feed 
of a solid form would be dropped. His mouth was examined, 
and the molar teeth smoothed at their outside edges with a tooth 
rasp, but there was a fulness of the gums about the front teeth 
like lam pus, in both upper and lower jaw. Osteo porosis was 
suspected, but as yet there was no enlarged head. It was a 
puzzle to me, having never met the disease. I gave him tonics, 
with a view to improve his appetite and invigorate him; washed 
his mouth with tinct. myrrh and other astringents, but all to no 
purpose; lie continued to grow worse, and the head began to en¬ 
large, and the fact dawned on my mind that here was a plain 
case of osteo porosis. About this time Dr. James McCoart, of 
Philadelphia happened to be with me, who confirmed my diag¬ 
nosis. We told the owner that the horse would not recover, and 
would perhaps starve to death. About a week after this visit, he 
got down in the stable and could not rise; when assisted, it was 
found he could not stand. The owner having been told by us 
