=Essence d'Orient.= [Fr.] A pearly-looking substance, found at the base of
the scales of the blay or bleak, a small fish of the genus _cyprinus_.
_Prep._ The scales are scraped from the fish into a tub containing water,
and after agitation and repose the fluid is poured off, and its place
supplied with fresh water, and this in its turn, after agitation and
repose, is also poured off. This part of the operation is repeated till
the 'essence' and scales are perfectly freed from impurities, when the
whole is thrown on a sieve, which retains the latter, but allows the
former to flow through. After repose for a short time, the essence is
obtained as a deposit at the bottom of the vessel.
_Obs._ Essence d'Orient has a bluish-white and pearly aspect, and is
employed to cover the interior of glass bubbles and beads, in imitation of
pearls and mother-of-pearl. Its tendency to putrefaction, while in the
moist state, may be obviated by the addition of a little liquor of
ammonia.
=Essence of Patch'ouli.= _Syn._ ESSENCE DE PATCHOULIE, ESPRIT DE POUCHÂ
PÂT [Fr.]. _Prep._ 1. Indian patchouli (leaves or foliaceous tops), 2-1/2
lb.; rectified spirit, 9 pints; digest for a week; add of water, 1 gall.;
oil of lavender (Mitcham), 3 dr.; common salt, 2 lbs.; agitate well
together, distil over (rapidly) 1 gallon, and add of essence of musk,
3-1/2 fl. dr. A very fashionable perfume. Essence of patchouli, thus
prepared, has been largely used, both at court and by the nobility
generally.
2. Patchouli, 3 oz.; rectified spirit, 1 pint; digest a week, press, and
filter. A still commoner kind is made with proof spirit.
=Essence of Pear.= _Syn._ ESSENCE OF JARGONELLE.
=Essence of Pen'nyroyal.= See ESSENTIA PULEGII, E. MENTHÆ P., L. _Prep._
From pennyroyal (_Mentha pulegium_), as ESSENCE OF PEPPERMINT. Stimulant,
carminative, and emmenagogue. Used in dispensing, especially to make
extemporaneous pennyroyal water.
=Essence of Pep'permint.= _Syn._ ESSENTIA MENTHÆ PIPERITÆ (B. P.) L.
_Prep._ 1. (B. P.) Oil of peppermint, 1 part; rectified spirit, 4 parts.
Mix.--_Dose_, 10 to 20 minims.
2. To the last add of herb peppermint, parsley leaves, or spinach leaves
(preferably one of the first two), 1/2 oz., and digest for a week, or
until sufficiently coloured. Sap green (10 or 12 gr., rubbed up with a
teaspoonful of hot water) is also used for the same purpose. A delicate
light green.