QUANTITY. QUALITY.

Much } { Hard.

Much } and { Soft.

Much } { Moderate.

Little } { Hard.

Little } and { Soft.

Little } { Moderate.

Moderate } { Hard.

Moderate } and { Soft.

Moderate } { Moderate.

* * * * *

COMMENTARY. The brief but comprehensive rules of Hippocrates for the

application of friction, are thus given in the language of Celsus:

“Hippocrates dixit, frictione, si vehemens sit, durari corpus; si lenis,

molliri; si multa, minui; si modica, impleri.” Celsus adds, that,

according to circumstances, the body may be braced by it, if relaxed; may

be softened, if indurated; may have its superfluities expelled, if loaded

with plethora; and have nourishment attracted to it, if emaciated. He

remarks, that it is mostly applicable in the decline of a disease. His

other directions for the application of it are very apposite, (ii, 14.)

Pliny delivers the rules of Hippocrates in nearly the same words as

Celsus. (Hist. Nat. xxviii, 14.)

Our author’s account of friction is taken from Oribasius (Med. Collect.

vi), or from Aëtius (iii.) All, however, are indebted to Galen, who

handles the subject most scientifically. (Hyg. ii.)

Similar directions are given by Avicenna (i, 3, 2), and by Haly Abbas

(Theor. v, 12.) Averrhoes gives the sum of the directions laid down by

Galen and the other authorities. Strong friction, he says, braces and

hardens the body; weak, rarifies and softens; moderate, operates in an

intermediate degree. Besides, he adds, hard friction diminishes obesity;

moderate, on the other hand, tends to remove emaciation. (Collect. ii, 3.)

It was a general practice of the ancients to have recourse to friction

in the morning and evening. Oribasius has many excellent observations on

this practice. (l. c.)

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