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803. Carded Cotton Carded Cotton is used as a dressing for superficial burns, and care should be taken to free it from specks, as flies are apt to lay their eggs there, and generate maggots. 804. Tow Tow is chiefly employed as a padding for splints, as a compress, and also as an outer dressing where there is much discharge from a surface. 805. Ointments Ointments are spread on calicoes, lint, or even thin layers of tow, by means of a knife; they should not be spread too thick. Sometimes ointment is applied to discharging surfaces on a piece of linen, folded over on itself several times, and then cut at the corners with scissors, in order to make small holes in it. The matter discharged passes out freely through these holes, and is received in a layer of tow spread over the linen. 806. Adhesive Plaster Adhesive Plaster is cut into strips, ranging in width, according to the nature of the wound, &c., but the usual width is about three-quarters of an inch. Isinglass plaster is not so irritating as diachylon, and is more easily removed. 807. Compresses Compresses are made of pieces of linen, calico, lint, or tow, doubled or cut into various shapes, according to the purposes for which they are required. They are used to confine dressings in their places, and to apply an equal pressure on parts. They should be free from darns, hems, and knots. Ordinary compresses are square, oblong, and triangular. Compresses are also graduated by placing square pieces of folded cloth on one another, so arranged that they decrease in size each time. They are used for keeping up pressure upon certain parts.