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 inhalation, and the gums may be rubbed 

 with spirit of wine. In the parturient form of this 

 disease many complications arise, and the animal does 

 not 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. 



Tetanus, 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 

 longue, which is seriously injured. 



Treatment is unsatisfactory, perfect quietude being all- 

 essential. 



Chorea, commonly known as St. Vitus^s dafice, 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 



