Let us take croup, diphtheria, scarlet fever, la grippe, and all classes of colds--on to pneumonia. They present about the same symptoms, differing more in degrees of severity than of place. All affect the tonsils, nostrils, membraneous air-passages, and lungs about the same way. Croup exceeds by contracting the trachea enough to impede the passing of air to the lungs; diphtheria has more swelling of the tonsils, throat and glands of the neck, but all depend upon the same blood and nerve supply, or a general law of blood beginning with arteries to and from veins, lymphatics, glands and ducts to supply and take away all fluids that are of no farther use to the vital and material support. As all authors have agreed that the brain furnishes the propelling forces to the nerves, it would be proper to inquire how the brain is nourished. If so, we will begin and say the great cerebral system of arteries supply the brain of which it gives quality of all fluids and electric and magnetic forces, which must be generated in the brain. Then a question arises, if the heart, lungs, liver, pancreas, lymphatics, kidneys and all parts of the body depend upon the brain for power, what do they give in return? If they give back anything it must be of the kind of the organ from whence it comes; thus a kidney cannot give liver nor spleen. Each must help to keep up the universal harmony by furnishing its mite of its own kind. Suppose lung fever is the effect of lack of renal salts, where would be a better place to dispatch from to renal organs than the ears to reach the brain and touch the nerve that connects with the sympathetic ganglion. CERUMEN IN FLUID STATE. Suppose we take the cerumen in its fluid state, by the secretions to the lungs from the ears and see the action of air and other substances on it, and it on them. We may safely look for a general action of some kind. If it be magnetic food, we will see the magnetic power shown in the lungs, and through the whole system, vitalizing all organs and functions of life. Thus the lymphatics will move to wash out impurities, and the nutritive nerves will rebuild lost energy. As but little is known or said of how or where the cerumen is formed, we will guess it is formed under the skin in the glands of the fascia and conveyed to the ears by the secretory ducts. Its place and how it is manufactured is not the question of the greatest importance, but its uses in disease and health. WINTER KILLS BABIES.