the THE HORSE. 
seldom to the extent shown in the case from which the accompanying 
engraving is taken.. It represents the left scapula and humerus of a 
horse, which were completely anchylosed, and of course there co-existed a 
proportionate amount of lameness during the progress of the disease, while 
after the anchylosis took place the want of action must have been com- 
plete. An examination by the hand of the point of the shoulder would 
readily detect so large a growth of bone as this ; but smaller ones are often 
thrown out beneath the mass of muscles surrounding the shoulder joint, 
and consequently beyond the reach of the most accomplished finger. The 
Fig. 6.—ANCHYLOSIS OF THE SHOULDER JOINT FROM EXosTOSIS. 
A. Scapula. C. D. Exostosis around the shoulder joint producing 
3B. Humerus. anchylosis. 
treatment should be on the same principle as for spavin, omitting the 
subcutaneous scarification, which is not here practicable on account of the 
nature of the joint. Blisters, and especially with the biniodide of mercury, 
will be the most likely to succeed, but in most cases the cure will be only 
partial. 
FISTULA OF THE WITHERS. 
WHEN A SADDLE has been allowed to press upon the spinous processes 
of the dorsal vertebree, it produces inflammation, which, if neglected, leads 
