1. Skin. - (a) For the patient's skin, preliminary to operation

Scrubbing with soft soap and application of tincture of iodine.

(B) For The Surgeon's Hands

Chlorine, generated by rubbing the hands with chlorinated lime and washing soda; potassium permanganate, 1: 5000, followed by oxalic acid to remove the brown stains; tincture of iodine; alcohol; 3 per cent. phenol; and mercuric bichloride 1: 2000. It is of no use to dash the hands into an antiseptic solution, then think them disinfected. The bichloride of mercury, for example, requires many minutes for its action.

(C) For The Obstetrician's Hands

A half per cent. solution of lysol or of the official compound solution of cresol. Both are rather soapy and serve as lubricants in vaginal examinations. Their slipperiness interferes somewhat in the handling of instruments.

All antiseptics for the hands and skin are preceded by thorough scrubbing with green soap and hot water. This acts by removing the loose epithelium and bacteria, and is probably of quite as much value as most of the antiseptics in freeing the skin from germ life. In open wounds there are very few antiseptics that do not harm the tissues of the host more than they do those of the bacteria.

(D) In Skin Diseases

The organic substances, tar, oil of cade, naphthalin, balsam of Peru, benzoin, resorcinol, salicylic acid, pyrogallol, ichthyol, formaldehyd; and the inorganic substances, mercuric chloride, ammoniated mercury, mercurial ointment, boric acid, sulphur, iodine and its compounds.

2. In eye - boric acid, silver salts, copper sulphate, mercuric oxide ointment.

3. In nose - camphor, menthol, oil of eucalyptus, boric acid, the silver salts, peroxide of hydrogen.

4. In mouth and throat - boric acid, the silver salts, hydrogen dioxide, mercuric chloride, ferric chloride, glycerin, iodine.

5. In urethra and bladder - the silver salts, potassium permanganate, zinc sulphate.

6. In vagina - compound solution of cresol, creolin, lysol, phenol, ichthyol, mercuric chloride, boroglycerin.

7. In rectum - boric acid, silver salts, quinine bisulphate, calcium permanganate.

8. In larynx and bronchi by inhalation - oil of eucalyptus, camphor, menthol, creosote, benzoin.

9. In open wounds - iodoform and the phenol iodine compounds, mercuric chloride, phenol, potassium permanganate, balsam of Peru (gauze), ichthyol, aluminium acetate, bismuth subiodide, zinc sulphate (in red wash), boric and salicylic acids (Thiersch's solution), hydrogen dioxide. As a temporary application to war wounds, Keilty and Packer recommend an ointment made of 70 per cent. of castor oil with wax and spermaceti, and the addition of 10 per cent. of thymol and tricresol.