__ severally contain, so modify Murray’s arrange- — 
ARO. | . 40 
5. Warm tonics, or those possessing aroma, but 
yielding no essential oil ; or, if any, not communi- — 
cating the whole of the effects to the system, aS” 
when exhibited in its native state of existence in the — 
substance itself, : : 
‘The latter sub-division of aromatic tonics into — 
two sub-sections, would accord with the pharma-— 
ceutical propriety of their exhibition as medicines. — 
To conclude, I shall, in the tabular view to be — 
given, of the articles of our subject, according to — 
the characteristic and useful property they way — 
_ment, as to secure the above sub-division of his 
_ class of tonics, This I believe to be a better dis- 
tribution than that taught by the late Professor 
Barton, which was a modification of Dr. Cullen’s: 
Most of these aromatics are the native growt 
of the tropics, none of high latitudes, though a few 
are found in the north-western part of North Amer- 
ica, and countries of similar constituted climat 
The essential oils of nearly all, have some proper 
ties in common with each other, which proper! 
come under the chemical consideration of the sub 
ject. Medically viewed, they are, when giv 
internally, warm, stimulating and grateful fro 
their fragrance ; and hence act as cordials and not 
seldom asantispasmodics. Some one of them enters 
into all carminative mixtures : and they all grate- 
fully reconcile to our taste, the offensiveness of other 
drugs with which they are mixed in prescription: 
As they excite the brain and sanguiferous system 
it is requisite to avoid them in any considerable 
quantity, in cases where either is unhealthfully 
roused. gas ae 
In the treatment of all exhausting affections of | 
the bowels, as cholera morbus, particularly wher — 
