The place which cold has in nourishing is, so to speak, negative--that is, it is useful only in reducing overheating. But when we remember how a frosty morning sharpens appetites and makes the cheeks glow with ruddy health, we see that such reduction of overheat is not infrequently required. Nourishment, Heat in.--Heat is absorbed in building up the bodily tissues, and given off when they are disintegrated. To rightly understand this is of great importance in all treatment. When a living substance is growing, it demands heat. An illustration of this is the sun's heat causing what we call "growing weather." Again, where substances are breaking up, as in burning wood, heat is given out. In the stomach, a certain amount of heat is needed during digestion. If it is not given, indigestion ensues. To swallow ice, where the stomach has already insufficient heat, is then great folly. On the other hand, to take hot water is to do the very thing which gives the stomach what it needs, and so to relieve the indigestion. Many times, when the stomach simply stands still from lack of energy, it will move immediately on getting a glass of hot water to help it. Similarly, a little genial heat assists other failing organs. As we have shown how cold diminishes the excessive action of inflammation and fever, so we now point out that if you can find out what organs are feeble and acting insufficiently, and stimulate them with gentle heat, you are on the way to a cure. Nursing Over.--Few vital processes are more remarkable than that by which food fitted for adults becomes in the mother's breast food fit for the little infant. In nursing it is well to remember that all food is not equally fit to be so changed. Well-boiled porridge, of either oat or wheaten meal, is probably as good as can be got. Malt liquor, though causing a large flow of milk, most seriously deteriorates its quality, and should be entirely avoided. But in this article we think chiefly of the mother, and of the necessary drain of blood and vital force which she bears in nursing. In most cases this drain is easily borne, in others the child is fed at the mother's expense. The supply of power, in such cases, is not equal to the loss of it in feeding the child, and the reserve in the mother's body is slowly used up. She becomes thin and pale, and her nervous system begins to suffer. When this is the case, either means must be used to increase her vital power, or nursing must at once be given up. Of course, where she may have had insufficient or unsuitable food, a change of diet may work a cure; but, as a rule, the drain of nursing will have to be stopped. To help her restoration, whether she ceases to nurse or not, use the following mixture and treatment: Boil a stick of best liquorice for half-an-hour in a quart of good soft water. Add one quarter of an ounce of camomile flowers, and boil for another half-hour. Keep the water up to the quantity by adding _boiling_ water as required. Strain the