1. _Protection of the Parts._—Those substances which are good non-conductors of heat are the best coverings. Woollen stockings or socks, and warm boots and shoes, come under this category. Light shoes and stockings should be worn in the house, or the feet will become so accustomed to a high temperature that they will be more sensitive to cold. Warm leather gloves, being impervious to wind, are better for the hands than woollen ones, through which the dry frosty air is apt to pierce and chap the hands. Tight wristbands, tight garters, and boots which lace or button tightly about the ankles, must be avoided, because, by preventing the proper circulation of the blood in the hands or feet, they diminish the vitality of the part, and produce an unnatural pressure on the coats or walls of the small blood-vessels. _The most frequent cause of chilblain is the warming of numbed hands or feet at the fire_. _This habit must, of course, be relinquished entirely._ Gutta-percha soles, by preventing the wearers from warming their feet at the fire, have saved hundreds from the attacks of chilblains; but such soles should not be worn in the house. After walking in the snow, or in frosty weather, the coverings of the hands and feet should be removed. Dry stockings should be put on after _gently_ rubbing the feet with the pair which has been taken off. The fresh pair _must not be warmed_. It is well to wear woollen stockings when out, and cotton stockings when in-doors. The use of excessively hot water when the feet are cold, has produced mortification; but the frequent washing of the feet in tepid water and soap, restores the powers of the nerves in the parts, and renders them less likely to be affected by those alternations of temperature to which they are liable to be exposed. 2. _Constitutional Means of Prevention._—Persons in robust health are less liable to take infection, suffer less from injuries, and when wounded, are possessed of greater powers of nature for reparation, than partial or confirmed invalids. The cold of winter ought to stimulate us to exertion; and exercise is especially necessary to health in winter. Too warm clothing of the body enervates and debilitates; only sufficient clothing, therefore, should be worn. Rooms in winter are often made hotter than the air of summer; this, and bad ventilation, is another blow to constitutional strength. Enough, however, has been said on this subject to indicate the necessity of general attention to the health in persons who are excessively liable to chilblains.