PRACTICAL OBSERVATIONS. 193 
or its operation is so tedious as to be unavailable. 
In such cases, if two or three paroxysms be pre- 
vented by the nitrate of silver, the bark is after- 
wards more efficacious. An eschar the size of a 
sixpence, on any part of the spine, will generally 
be sufficient to support the Animal Heat, and 
maintain the natural expansibility of the extreme — 
vessels. The bark should be discontinued so 
long as the eschar prevents the paroxysms; but 
when they return, the bark must again be ordered. 
Cholera of India,—As this disease has ravaged 
the greater part of Asia, and has now reached 
the frontiers of Turkey, it is not improbable that 
Europe may likewise come under its dreadful 
scourge. I shall, therefore, briefly state a few prac- 
tical rules to direct those to whom this epidemic 
will appear a new disorder. Its course is so rapid, 
that it is not only necessary to make choice of 
those remedies that are best adapted to its cure, 
but to give cautions against those which might 
be pernicious. The administration of purgatives, 
not even excepting calomel, is followed by the 
most disastrous consequences. As well might the 
practitioner expect to stop a hemorrhagy by 
warm fomentation, as to cure the Cholera of 
India with purgatives. There are two  indica- 
tions of cure which should be steadily kept in 
view, namely, to arrest the discharge of serum 
from the intestinal exhalants, and to restore the 
2B 
