size of the dose, and is graduated to the age.

YEARS DOSE
21. . . . . . . . . .full
15. . . . . . . . . . 2-3
12. . . . . . . . . . 1-2
8 . . . . . . . . . . 1-3
6 . . . . . . . . . . 1-4
4 . . . . . . . . . . 1-6
2 . . . . . . . . . . 1-8
1 . . . . . . . . . . 1-12
½ . . . . . . 1-20 to 1-30

The doses mentioned in the following pages are those for adults, except
when otherwise specified.

THE PREPARATION OF MEDICINES. The remedies which we shall mention for
domestic use are mostly vegetable. Infusions and decoctions of these
will often be advised on account of the fact that they are more
available than the tinctures, fluid extracts, and concentrated
principles, which we prefer, and almost invariably employ in our
practice. Most of these medical extracts are prepared in our chemical
laboratory under the supervision of a careful and skilled pharmaceutist.
No one, we presume, would expect, with only a dish of hot water and a
stew-kettle, to equal in pharmaceutical skill the learned chemist with
all his ingeniously devised and costly apparatus for extracting the
active, remedial principles from medicinal plants. Yet infusions and
decoctions are not without their value; and from the inferior quality of
many of the fluid extracts and other pharmaceutical preparations in the
market, it may be questioned whether the former are not frequently as