496 DISEASE OF OSSEOUS TISSUE IN THE HORSE. 
partook of the same kind of food. He further informed me 
that he had not the slightest reason for supposing that his 
men had been using drugs of any kind, as carters are very 
often in the habit of doing; nor could he account for the 
occurrence of the disease in any way whatever. 
Having heard the above statement from Mr. Champion, 
and also that of the veterinary surgeon under whose care the 
animals had been placed, I proceeded to examine the two 
horses then labouring under the malady. 
I was first shown a brown cart-horse, five years old. He 
was standing in the cart-horse stable with other horses; was 
in very fair condition, and at first sight appeared as if nothing 
was the matter with him; the pulse was only a little above 
the ordinary standard, and the excretions, as far as I could 
see or learn, were natural. I ordered him to be led out of 
the stable, when I observed that he stepped short, flexed 
his limbs with difficulty, and apparently with much pain, 
particularly the near fore and the off hind legs; the knee- 
and hock-joints of which were hotter than natural, slightly 
swollen, and tender when pressed upon. These symptoms 
were also present in the other two limbs, but in a much 
less degree of intensity. On causing the horse to be turned 
round, or moved in a backward direction, a decidedly rigid 
state of the loins was observed, and by pressing upon any 
part of the back considerable pain was evinced. On exa¬ 
mining the animal’s head, I was particularly struck with the 
enlarged and roundish appearance of the facial region. Each 
ramus of the lower jaw, the upper maxillary, and the nasal 
bones, were evidently enlarged, and pressure on them caused 
some amount of pain. On looking into the mouth, I ob¬ 
served that the mucous membrane was of a purplish tint, 
except at the margin of the gums, where it was of a pinkish 
colour, crossed here and there by bluish lines (veins). The 
lining membrane of the nasal passages, and the conjunctival 
membrane also, were paler than natural. This condition of 
the membranes, I was assured by Mr. Wallin, could not have 
been caused by any medicine that had been given. 
I next examined a chestnut gelding, four years old. He 
was kept in a barn, in which he had been for some time, and 
every care seemed to have been bestowed upon him. He was 
in very good condition, although, I was told, not so fleshy 
as he had been. Like the brown horse, while in a standing 
position he did not appear to be suffering, but when made 
to walk the pain seemed to be very acute. The joints 
of the near fore and off hind legs were also hotter than 
natural, tender, and slightly swollen; and, as in the brown 
