OSTEOPOROSIS. 
31 
describe the course of a case which recently came under my 
care, a bay filly, one year old, standard bred. I knew this 
colt during- her whole life. She was kept upon the place 
where she was foaled until she died. The place where she 
was raised is a small dairy farm within the city limits. The 
drainage is exceptionally good, the farm being nearly sur¬ 
rounded by tide-water, and lying as a high knoll, above high 
water. There are seven or eight horses kept upon the place, 
and all are fed and watered from the same bins and wells. 
The stabling is comfortable. This filly, as is a full sister one 
year older, was always kept in an outside box-stall, with dry 
floor and windows opening directly outside. During the 
summer she was always out during day and night, when the 
weather was good, on good clover pasture, with grain feed 
twice a day. On the third dav of last April, she was led to a 
blacksmith shop near my office to have her feet trimmed. 
She was a little restless, and would pull away from the black¬ 
smith when he began to rasp the foot. Upon giving a sudden 
pull, she completely dislocated the left scapulo humeral joint. 
I was standing near watching the blacksmith at his work, 
and knew that the pull she made was a slight one, he not 
attempting to hold her. I at once reduced the dislocation, 
and with surprising ease, and in about two weeks she was as 
well as ever. 
About the last of May, my attention was called to this 
filly again. She had not been doing well, and while eating as 
well as the other stock was not thrifty. I found a slight 
glairy discharge from both nostrils. The bones of the whole 
facial region seemed to be thickened, and there was marked 
dypsnoea, evidently from the thickened turbinated bones. At 
this time there was no lameness. 
In about a week, the discharge from the nose had in¬ 
creased and respiration had become more difficult and I 
found her decidedly lame in the right foreleg. The next day 
she was lame in both fore limbs. In two or three days she 
was lame in the hind legs, the difficulty in front having left 
her. The swelling of the facial bones kept increasing until 
respiration became fearfully painful. Her food could be but 
