DISEASE OF OSSEOUS TISSUE IN THE HOUSE. 495 
off. In this way all the four extremities, one after the other, 
eventually became similarly diseased. The appetite was 
generally good, and for a time the animals did not lose flesh 
very fast, but after awhile, from the great constitutional dis¬ 
turbance set up, they fell off in their appetites, and began to 
waste rapidly. The pulse seldom rose much above the 
natural standard, and the excretions appeared to be natural.” 
He also informed me that he had made a post-mortem exami¬ 
nation of each horse that had died, but only so far as 
the abdominal and thoracic viscera, and the large articula¬ 
tions of the four limbs were concerned. In the former he 
could not detect anything to account for the death of the 
animals, but in the latter he found extensive ulcerations of the 
articular cartilage to exist, with only a small quantity of 
synovia, and that of a dark colour, arising apparently from 
an admixture of blood. This articular disease was sufficient, 
in his opinion, to account for the pain observed in walking, 
which 1 fully concurred in. 
This is a brief outline of what Mr. Wallin communicated 
to me respecting the symptoms, progress, termination, and 
post-mortem appearances of the cases, as they had come 
under his notice. 
Mr. Champion gave me the following history of the 
horses in question. He stated that he bred all the horses 
that had died, or were then ill, except one, which was 
a brown horse, and this he had bought. They were the 
offspring of different mares, and also different sires. They 
had been fed with the same kind of food as the other 
horses on the farm, which had never shown any symptoms 
of the disease, and also in the same way; indeed he had been 
in the habit of feeding his horses for many years in this 
way, without, until the present occasion, having experienced 
any ill effects. Bran or pollard formed the greater part of 
their diet; otherwise it consisted of the ordinary produce of 
the farm. They all drank the same kind of water, this being 
that which the stock generally partook of. Mr. Champion 
showed me samples of the food the horses had been in the 
habit of eating, all of which appeared to be very good. He 
likewise mentioned one singular circumstance, namely, that 
although his young horses consisted of colts and fillies, not 
one of the latter had ever been affected with the disease; 
those that had died, and those that were then unwell, being 
males. He also stated another singular fact, that on his 
other farm, which was only a short distance from the one 
where this disease existed, not a single instance had occurred, 
although the horses were bred from the same parents and 
