Note 18 — DISSERTATION II. CONTINUED.

The solution must, upon the principles already laid down, be both weak, and only so cold as to reduce the sensation of the part to its natural condition, that is to say, so as to abate the morbid feeling of heat; because, if we make it otherwise, we may injure the powers of recovery, and perhaps induce gangrene. The application ought not to be so cold as to excite the sensation of coldness, at least in any considerable degree.