The cortical part of the root may be taken,
in substance, to the quantity of a dram: the internal part is
considerably weaker, and requires to be given in double the dose to
produce the same effect. It is scarcely otherwise made use of than as an
ingredient in Venice treacle.--Lewis's Mat. Med.
377. POPULUS niger. THE BLACK POPLAR. Its Buds.--The young buds or
rudiments of the leaves, which appear in the beginning of spring, abound
with a yellow, unctuous odorous juice. They have hitherto been employed
chiefly in an ointment, which received its name from them; though they
are certainly capable of being applied to other purposes: a tincture of
them made in rectified spirit, yields upon being isnpissated, a fragrant
resin superior to many of those brought from abroad.
378. PRIMULA officinalis. COWSLIP. The Flowers.--The flowers appear in
April; they have a pleasant sweet smell, and a subacrid, bitterish,
subastringent taste. An infusion of them, used as tea, is recommended as
a mild corroborant in nervous complaints. A strong infusion of them,
with a proper quantity of sugar, forms an agreeable syrup, which for a
long time maintained a place in the shops. By boiling, even for a little
time, their fine flavour is destroyed. A wine is also made of the
flowers, which is given as an opiate.
379. PRUNELLA vulgaris.
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