0STE0-PCR0SI3. 187 



with mucli pain, particiilarly the near fore and the ofif hind legs, 

 the knee and hock joints of which were hotter than natural, 

 slightly swollen, and tender when pressed upon. These symp- 

 toms 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 examining the animal's 

 head, I was particularly struck with the enlarged and roundishi 

 appearance of the facial region. Each ramus of the lower jaw^ 

 the upper maxillary, and the nasal bones were evidently en- 

 larged, and pressure on them caused some amount of pain. On 

 lookinff into the mouth, I observed 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 conjimctival membrane also were paler than naturaL Thia 

 condition of the membranes, I was assured by Mr. Wallir. coidd 

 not have been caused by any medicine that had been given." 



In the other case, a chesnut horse, which Professor Vamell 

 examined, the joints were swollen, hot, and tender ; there was the 

 same rigidity pf the back, and the pecvdiar colour of the mucous 

 iffembranes; but the enlargement of the bones did not exist. 

 This case had been ill for about six months. 



The post mortem examination revealed the following condition 

 of parts : — The internal organs, with the exception of a peculiar 

 paUor, showed no marks of disease. The chesnut horsa was sent 

 to Loudon, and on his arrival at Paddington St?,tioa he waa 

 found unable to walk from the horse-box to the van that was 

 sent to take him to the Eoyal Veterinary College. On his 

 attempting to walk, his fore legs gave way at the elbow-joint on 

 one side, and the shoulder-joint on the other, in consequence of 

 the articular and capsular ligaments, and the tendons of the 

 muscles, which are attached near to these joints, becoming 

 detached (as was found to be the case afterwards) from their 

 bony connections, by the tearing away of portions of diseased 

 bones. The horse was desti*oyed upon the spot, and the carcase 

 taken to the College for dissection. "The soft parts," says 

 Professor Yamell, " generally were paler than is natural, especi- 

 ally the muscles of those limbs which had been t)irown.out o£ 



