Wounds are divided into incised, or those done by a sharp instrument, lacerated when done by a rough instrument, punctured when done by a pointed instrument, and poisoned or gun-shot wounds.

Wounds produced by a sharp instrument.--The first object is to stop the bleeding. When an artery is cut, the blood is of a bright scarlet color, and gushes from the blood-vessel in a jet, with great force. When a vein is cut, the blood runs in an even, unbroken stream, and is of a purple-red color. The bleeding may be stopped with a pledget of lint rolled up and pressed directly upon the mouth of the artery. The next object is to cleanse the wound from all extraneous substances. The sides of the wound should then be placed together, and confined by narrow strips of sticking plaster. Over these strips should be placed a cushion of soft lint; and over the whole a bandage drawn agreeably tight, and making equal pressure.

In lacerated, punctured, and gun-shot wounds, inflammation sometimes takes place, requiring a poultice of slippery elm mixed with lye-water. They require much the same treatment as wounds produced by a sharp instrument, but are much more difficult to heal. Caution should be used to prevent taking cold, as serious consequences some times follow, especially in punctured wounds.