Cancer of the lip is usually characterized by a callous thickening of the cuticle and the formation of a warty excrescence; or it may begin by a painful pimple, which after once or twice being removed, degenerates into a small irritable ulcer, that discharges a thin ichorous exudation, and rapidly affects the glands under the jaw, which become distinct and knotty; the ulcer, after remaining for a length of time in passive, irritant state, closing over, and again breaking out, suddenly assumes an active form, and is attended with stiffness in the muscles of the jaw and darting pains, till it finally assumes all the features of this much dreaded disease; for which, though caustic and arsenic are the best remedies we possess, there is no certain cure but excision, in the same manner as for hare-lip. Though cancer of the lip is generally confined to _men_ in mid-life, and inveterate smokers, it would appear more to depend upon some occult state of the blood than on any social habit, however objectionably pursued. PRESERVATION OF THE TEETH. The preservation of the teeth ought to form an important item in the care of the person. The possession of sound teeth is a great blessing, as they not only promote the process of digestion, but keep the breath sweet and pure. Unsound and unclean teeth are also most unsightly and unpleasant for other persons to be brought in contact with; for these combined reasons, the greatest care should be observed in the management of these important organs. It must be understood that the teeth are bones thinly covered over with a fine enamel, and this enamel is more or less substantial in different persons. Whenever this enamel is worn through by too coarse a powder or too frequently cleansing the teeth, or eaten through by a scorbutic humour in the gums, the tooth cannot long remain sound. The teeth, therefore, are to be cleaned but with great precaution, for if the enamel is worn off faster by cleaning the outside than nature supplies it within, the teeth will probably suffer more by this method than by neglect. A butcher’s skewer, or the wood with which they are made, must be bruised and bit at the end till with a little use it will become the softest and best brush for this purpose; and in general, the teeth may be cleaned with this brush without any powder. It is necessary to observe that, very near the gums of persons whose teeth are otherwise good, there is apt to grow a false kind of enamel, both within and without, and this false enamel or tartar, if neglected, pushes the gums higher and higher till it leaves the fangs of the teeth quite bare, above the true enamel, so that sound teeth are destroyed, because the gum has forsaken that part which is not sheathed and protected. In the summer months this tartar may be effectually removed by partaking daily of strawberries; eating plentifully of watercresses is also considered a good remedy. An excellent tincture for this defect will be found as