_b._ (Dr Neligan.) From yellow bark, as FLUID EXTRACT OF BUCHU.
6. (Resinous:--ALCOHOLIC EXTRACT OF BARK; EXTRACTUM CINCHONÆ ALCOHOLICUM,
E. CINCHONÆ, L.)--_a._ (Ph. E.) From any variety of cinchona bark (in
powder), 4 oz.; proof spirit, 24 fl. oz.; prepare a tincture by
displacement, distil off most of the spirit, and evaporate the residuum to
the consistence of an extract. This is the only EXTRACTUM CINCHONÆ of the
Edinburgh College.
_b._ (Ph. U. S.) Peruvian bark, 1 lb.; rectified spirit, 4 pints; make 4
pints of tincture by displacement; add water to the mass in the
percolator, digest, and obtain 6 pints of infusion; distil off the spirit
from the tincture, and evaporate the infusion to the consistence of syrup,
then mix the two, and complete the evaporation. More active than the
aqueous extract.--_Dose_, 5 to 20 gr.
_c._ (Ellis.) Yellow bark, 2 lbs.; hydrochloric acid, 4 fl. dr.; water, 1
gall.; boil, strain, and repeat the decoction with fresh water and acid;
mix the decoctions, filter, and agitate it with fresh-slaked lime, 2-1/2
oz.; filter or decant; dry the residuum, and exhaust it with hot alcohol,
q. s.; lastly, evaporate the alcoholic tincture to a pilular
consistence.--_Dose_, 1 to 5 gr. Some persons have proposed to call this
'ESSENTIAL SALT OF BARK,'
7. (Vinous:--EXTRACTUM CINCHONÆ VINOSUM, L.--Ph. Hesse.) Peruvian bark (in
powder), 1 part; white wine (sherry), 8 parts; digest 3 days, express,
filter, and evaporate.
=Extract of Coc'culus.= _Syn._ EXTRACT OF COCCULUS INDICUS, BLACK EXTRACT,
EXTRACT (Brewer's), BEER STRENGTHENER, HARD MULTUM; EXTRACTUM COCCULI, E.
C. INDICI, L. _Prep._ From _cocculus indicus_, by decoction. It is kept in
two states--one having the consistence of thick treacle; the other, that
of a pilular extract. The first is 'put up' in bladders; the last is made
into 1/2-lb. rolls, like lead-plaster-or roll-chocolate. It is narcotic
and poisonous, and is employed by fraudulent brewers and publicans to give
a false strength to their liquors. See COCCULUS INDICUS, BEER, &c.
=Extract of Col'chicum.= _Syn._ EXTRACT OF MEADOW SAFFRON, E. OF THE CORMS
OF COLCHICUM; EXTRACTUM COLCHICI (B. P.). _Prep._ 1. (B. P.) The expressed
juice of fresh colchicum corms, cleared of deposit, boiled, strained, and
evaporated to a proper consistency at a temperature of 160° Fahr.--_Dose_,
1 to 2 gr.