Infusion is one of the most frequent operations required in making up
medicines, its object being to extract the aromatic and volatile
principles of substances, that would be lost by decoction, or
digestion; and to extract the soluble from the insoluble parts of
bodies. Infusions may be made with cold water, in which case they are
weaker, but more pleasant. The general method employed consists in
slicing, bruising, or rasping the ingredients first, then placing them
in a common jug (which should be as globular as possible), and pouring
boiling water over them. Cover the jug with a cloth folded six or
eight times, but if there be a lid to the jug so much the better. When
the infusion has stood the time directed, hold a piece of _very
coarse_ linen over the spout, and pour the liquid through it into
another jug.
[TO-MORROW, POOR--OR LIFE ITSELF DENIED.]