The granulating surface to be covered in this manner must first be cleansed with a weak sublimate solution, followed by a sterilized normal salt solution. When an ulcerated or denuded surface requires skin-grafting, the best time to begin is as soon as there is evidence of the formation of new skin at the edges of the wound; in other words, when reparative action is becoming established. This does not apply to surfaces just denuded over healthy areas for plastic purposes, which should be grafted immediately. The grafts, having been placed, are covered with a layer of very thin protective silk, or gutta percha, over which a soft gauze or cotton dressing may be applied, borated absorbent cotton being most suitable. _Thiersch_ recommends the use of gauze compresses saturated in the normal salt solution, which are changed each day. Another method of covering the grafts is to use perforated silk or small strips of the same material, which permit the dressings to absorb the excretions from the wound and also allow of the free use of either weak antiseptic or sterile salt solutions. The use of silk or rubber prevents the adhesion of the grafts, which would otherwise be torn away by the removal of dressings, although iodoform gauze answers the purpose very well. It can be safely lifted by first thoroughly wetting it with the normal salt solution. Strips of tinfoil, first rendered aseptic by immersion in a 1-1,000 sublimate solution and then dipped into sterilized oil or two-per-cent salicylized oil, have been recommended by _Socin_. Goldbeaters’ skin has also been advocated. A method that has proved of great value in America is that of skin-grafting in blood. In this method the grafted site is covered with perforated protective silk or rubber tissue, covered with a thin layer of absorbent cotton, or, better, several folds of sterilized gauze, which is kept wet constantly with bovinine. The latter undoubtedly is the means of keeping life in the grafts by supplying the necessary nutrition until the grafts have formed vascular connection, have become firmly adherent, and begin to spread or grow out at their edges. The living grafts remain as pale islets of skin, which throw out thin epidermal films that meet and grow thicker, until finally the interjoined grafts assume all the functions of normal skin. It is often necessary to reduce or scarify the edges of the healthy skin that has become thickened where the grafts meet it. This is permissible only when the grafts have become firm and thrive, and may be accomplished by the careful and intelligent use of pure carbolic acid applied with a wooden pick, or by the employment of a stick of fused nitrate of silver, care being taken not to come in contact or to allow the cauterant to touch directly or in solution the new skin.