THE HORSE, ITS DISEASES. 495 



When roanng is caused by paralysis of the muscles of the larynx, hy- 

 podermic injections of strychnine every two or three days in half grain 

 doses has given relief. 



Relief is also sometimes given by rubbing on daily, or once in two 

 iays, the following : 



No. 213. 1 Drachm iodine, 



2 Drachms iodide of potash, 

 2 Ounces lard. 



Mix at a heat little more than to melt the lard, by placing in a vessel 

 of hot water. 



In all of the diseases mentioned, good, easily-digested food should be 

 given, and only sufficient water to satisfy the actual demands of the sys- 

 tem, and the animal should not be put to work within an hour of eating 

 his food. 



Thick Wind. 



This may be alleviated, and sometimes cured, by giving the following 

 6all once or twice a day for several days in succession, as the animal may 

 eeexn to need it : 



No. 214. 1 Drachm powdered camphor, 



1 Drachm powdered niter, 

 1 Drachm powdered opium. 



Or if preferred, to be given once a day, until five or six doses are takeii> 

 U\G following : 



So. 215 1 Drachm powdered niter, 



1 Drachm extract belladonna. 

 S grains arsenic. 



XH. Wind-galls. 



Causes. — Windgalls may arise either from strains, over exertion, ot 

 dropsy of the parts. As a rule they are elastic, round swellings on each 

 Hide of the tendons, rarely becoming solid from coagulation of the lymph, 

 unless as is occasionally the case, the strain Is so severe as to cause in- 

 flammation of the bone, ulceration and bony deposit. They do no injury 

 whatever, and do not cause unsoundness. 



What to do. — If the puffs, windgalls, are just appearing they may 'oe 

 scattered sometimes by a strong decoction of white oak bark and alum. 

 They may be reduced by blistering from subsequent contraction of the 

 skin : so the liquid lymph may be drawn out with a hvpodermic syringe, 

 after which a wet bandage should be applied over the part 



