a indigo, nanny bush, cohush, &c. 
MATERIA MEDICA- 
ty, is never to prescribe it. Should it become-nécessa 
however, for us to counteract its baneful effects, it is to b 
the use of vegetable alteratives, as sarsaparilla, guaiacum, 
x 
Quicksilver, in its native state, may be advantageously prescribed 
in the first stage of the iliac passion, before the bowels are too much 
weakened and corroded by the stagnant feces ; especially if it be ~ 
given with castor oil, or fat broth, butnospice. ‘There are instances 
mm. which several. ounces, nay, half a pound and upwards of pure 
quicksilver have been swallowed with the happiest effects. But in 
ne eS ee colic, when i : ati ri 
gangrene have already taken place in the bowels, 
would infallibl poy ore ne and accelerate tl 
Corrosive ‘mate—Muriate of mercury. This is pi ed by 
boiling purified quicksilver in sulphuric acid, till it is dry, in a sand 
bath. Mix the matter when cold, in a glass vessel, with the muriate 
of soda, then sublime it in a glass cucurbit. _ : Pie 
Muriate of mercury is one of the most violent poisons with which 
ae 
sonst 
~ Calomel.—Sub-muriate of quicksilver. This is made ‘by tritura- 
ting corrosive sublimate and quicksilver together, and afterwards sub- 
liming it. This preparation differs from the former, in being perfeet- 
ly insipid, and 
anti-venereal it is given in doses of a grain, night and. morning ; or 
in larger doses, its usual determination to the intestines being pre- 
vented, if necessary, by opium. ‘Thus directed, (they say,) this pre- _ 
: ion is 
x 
Be 
. of curing syphilis in every form. It is the pre- 
paration which is most usually given in the ee ee in _— 
mercury is employed. It is employed asa cathartic alone, or pro- 
mote the operation of other purgatives : with jalap, it forms the fa- 
yourite cathartic of Dr. Rush, in bilious and yellow fevers ; and with 
rhubarb it is highly extolled in dysentery. As a vermifuge it is to- 
lerably certain : a child between the ages of two and four years, in 
general, may take from one to three grains at a dose, In syrup. 
- Asa cathartic, its dose for an adult may be from five to ten or 
twenty grains, or more. It should never be trifled with ; and during ~ 
ils exhibition, confinement to an equable temperature in a room, 15 
4 
