DISINFECTING LIQUID.—In a wine-bottle of cold water, dissolve two ounces acetate of lead (sugar of lead); and then add two (fluid) ounces of strong nitric acid (aqua-fortis). Shake the mixture, and it will be ready for use.—A very small quantity of the liquid, in its strongest form, should be used for cleansing all kinds of chamber utensils.—For removing offensive odours, clean cloths thoroughly moistened with the liquid, diluted with eight or ten parts of water, should be suspended at various parts of the room.—In this case the offensive and deleterious gases are neutralized by chemical action. Fumigation in the usual way is only the substitution of one odour for another. In using the above, or any other disinfectant, let it never be forgotten that _fresh air_—and plenty of it—is cheaper and more effective than any other material.—O. N. TOILETTE RECEIPTS. HAIR DYE, No. 1.—I have operated upon my own cranium for at least a dozen years, and though I have heard it affirmed that dyeing the hair will produce insanity, I am happy to think I am, as yet, perfectly sane, and under no fear of becoming insane; at all events, I am wiser than I once was, when I paid five shillings for what I myself can now make for less than twopence!—but to the question:—I procure lime, which I speedily reduce to powder by throwing a little water upon it; then mix this with litharge (three-quarters lime and a quarter litharge), which I sift through a fine hair sieve; and then I have what is sold at a high price under the name of “Unique Powder,” and the most effectual hair dye that has yet been discovered. But the application of it is not very agreeable, though simple enough:—Put a quantity of it in a saucer, pour boiling water upon it, and mix it up with a knife like thick mustard; divide the hair into thin layers with a comb, and plaster the mixture thickly into the layers to the roots, and all over the hair. When it is all completely covered over with it, then lay all over it a covering of damp blue or brown paper, and bind over it closely a handkerchief, then put on a nightcap over all, and go to bed; in the morning, brush out the powder, wash thoroughly with soap and warm water, then dry, curl, oil, &c. I warrant that hair thus managed will be a permanent and beautiful black, which, I dare say, most people would prefer to either gray or red.—J. G. HAIR DYE, No. 2.—Moisten the hair first with a solution of silver in nitric acid, and then with a weak solution of the hydro-sulphuret of ammonia. This is instantaneous in its effects. It is to be observed that it also stains the skin. SUPERFLUOUS HAIR.—Seeing a general desire for a receipt to remove superfluous hairs, I send you one which I can recommend:—Lime, one ounce; carbonate of potash, two ounces; charcoal powder, one drachm; mix with warm water to a paste, and apply it to the hair. When dry, wash it off.—W. Ll. R.