232 Diseases of the Nervous System. 
jugular vein by preference. Subsequently, if the animal 
lives so long, a blister should be applied to the same 
part and along the spine. The best internal remedy 
is ammonia. Cold water coutinuously applied to the 
head is also of great service. Ammonia should be held 
to the nostrils for intalation, and the gums may be rubbed 
with spirit of wine. In the parturient form of this 
disease inany complications arise, and the animal does 
riot succumb so early. <A brisk purgative should be 
promptly administered, the action of which may be 
stimulated and nervous power restored by small and 
frequent doses of the aromatic spirit of ammonia. The 
milk should also be continuously drawn from the gland. 
Tetantis, or Locked Jaw.—Notwithstanding the high 
state of development in the nervous system, and his 
liability to nervous disorders, the dog is rarely affected 
with tetanus. The form with which we are most familiar 
is that induced by poisoning with strychnine, in which the 
jaws are fixed, tightly closed, and often including the 
tongue, which is seriously injured. 
Treatment is unsatistactory, perfect quietude being all- 
essential. 
Chorea, commonly known as St. Vitus’s dance, is a 
spasmodic form of nervous derangement, most probably 
due to a low state or debility of the system generally and 
the nervous centres in particular. It may assume the 
local or general form. 
The Symptoms consist of a series of sudden spasms or 
contractions which are confined to a set of muscles, or 
sometimes to one muscle, or even the part only of one, 
followed immediately by relaxation. Thus, one limb or 
other part of the body may be seized, the alternate con- 
tractions and relaxations being continuous, induces a 
varied appearance, sometimes even grotesque, but always 
evidently attended with severe strain and discomfort. 
The most searching investigations hitherto carried out 
have failed to point out the exact condition of the nerve 
structures involved, or the means of absolute cure. 
Treatment.—We have found strychnine a valuable 
remedy, and under its judicious use better results have 
