270 The Management and Diseases of the Dog. - 
leeches applied. Ammonia should be placed to the 
nostrils, brandy rubbed on the gums, and counter-irritation 
along the spine. 
VERTIGO. 
Dogs are occasionally seized with a kind of dizziness or 
vertigo. They suddenly fall, remain unconscious for a 
minute or two, and motionless ; and then almost as 
suddenly regain their legs, and with the exception of 
appearing a little bewildered, seem as though nothing 
unusual had happened. 
Such seizures are generally due to brain pressure, most 
frequently from some retarding influence in the return of 
blood from the head, as a tight collar, glandular enlarge- 
ments, bronchocele, etc. A disordered condition of 
stomach is likewise a predisposing cause, and the suscepti- 
bility to an attack of vertigo is greater after a full meal, 
and particularly if any of the above-named obstructions to 
the circulation also exist. 
Treatment.—This consists in removal of the cause ; neck 
pressure as far as possible should be avoided ; a healthy 
state of the digestive organs maintained, with proper ob- 
servance of hygienics. 
CHOREA., 
Chorea, or St. Vitus’s dance, is a purely nervous affee- 
tion, and is the result generally of an irritable and impaired 
condition of the nervous system. It may be general or 
local. The limbs are frequently first observed affected, 
ultimately the body, face, and jaws may be involved, the 
latter exhibiting tetanic symptoms.* 
Symptoms.—Chorea is denoted by a peculiar snatching 
or twitching of the part affected. lt the brain is involved, 
* | have at the time of writing this, under treatment, a pug dog ex- 
tensively afflicted with chorea ; the jaw can only be opened half an 
inch, and goes to again with a sharp snap. The lips are convulsed. 
