85 {emE, 
I have not proposed this division of the class of 
emetics, from any desire to offer something entirely 
new, which it is, but because an attentive considera- 
tion of the immense number of important agents 
usually thrown into one group under the head of 
_emetics, has led me to believe a philosophical view 
-of their various effects and modes of action, would 
lead the student to a more extended regard of their, 
inestimable use, than ifthey are, as is always done, ~ 
grouped according to the unity of their py log 
cal effect. It presents their powers to his min 
such various lights and shades, so disposer 
the mind’s eye can rest on that distance or object 
the entire picture, which may suit his contempla- 
tive and reflective powers, in times of need. For 
he will assuredly find, in the course of his prac- 
tice. ample occasion to be well versed in all the 
varieties of this important assemblage to adopt 
some one or more of them to the exigencies and 
peculiarities of the subjects for their operation. 
The physician who confines his ideas of emetics to 
the simple effect of tartar emetic or ipecacuanha 
is but rudely versed in the philosophy of his pro- 
fession ; and I will go farther, is but slenderly 
stocked with requisite knowledge of one of the 
leading and effective parts of his art. This sub- 
ject will be extensively canvassed in the lectures. 
In the mean while it may suffice to give examples 
of the different classes and sections of emetics, 
proposed, : 
Cuass 1. § a—Tartaremetic, sulphate of copper 
and the like. — 
_ § b—Warm water and the like. 
§ o—Weak infusion of mustard, horse- 
radish, chammomile flowers, car- 
