BOTANIC MATERIA MEDICA, 55 
the following compounds: co, decoct., sarsapa- 
rilla, pulvis glycyrrhiza comp., and syrup sarsa- 
parilla co., whilst the powder is used ad libitum 
for the preparing of pills and troches, to give 
them consistency. The dose of powdered ex- 
tract is from 15 to 30 grains (1 to 2 grams); of 
the fluid extract, % tox fluid drachm (2 to 4 
grams). The extract forms one of the ingredi- 
ents of the much-esteemed Brown Mixture, 
There is also an ammoniated licorice recom- 
mended in the revised edition of the Dispensa- 
tory, the dose of which is 5 to rs grains. For 
further account see United States Dispensa- 
tory. 
Heuchera Americana, American Heuc- 
hera, Alum Root, or American Sanicle. Natural 
order Saxifragacez. A native of North America, 
and usually found growing in rich, woody lo- 
_ calities. This perennial shrub attains a height 
of 20 to 40 inches (50 to too centimeters), the 
calyx cohering to the ovary. Petals are small, 
five in number; five stamens, and a two-celled 
pod with many seeds. The flowers grow in 
small clusters with a purple tinge of color, 
blooming in the month of June. The root is 
the part used in medicine, and when fresh it is 
fleshy and about 6 inches long (15 centimeters); 
but when found in the stores (which is not often) 
dried it is irregular in shape, shriveled and 
tubular, with many thin branches or radicles. 
Externally somewhat of a purple-brown color, 
while internally it is of a red-brown color, and 
is made up of a granular structure with many 
internal cavities. It has little or no odor, but a 
strong styptic and astringent taste; hence the 
