infant is born with a hemoglobin percentage of 100 to 110; by the third or fourth month this may sink to 40 per cent, and for this reason green vegetables should be added to the diet as early as the fourth month. The diet of healthy children in the second year should include cooked cereals, vegetables, toast, cooked fruits, and meat-juices; and the quantity of cow’s milk should be limited to one and one-half pints in twenty-four hours. The question of the addition of meat to the diet is important. Some authors have recently advocated the giving of meat as early as the ninth month. During the past year, working in Finkelstein’s laboratory, I have been able to gather some facts which have a direct bearing on this question. (_Zeitschrift für Kinderheilkunde_, July, 1914.) By means of the new electrometric determination of absolute acidity (that is, the number of H ions), I was able to show that the acidity of the stomach before the eighteenth month of life is insufficient to permit any peptic, i. e., protein, digestion. Solomon, working in the same clinic, in a report not yet published, has shown the same thing from a clinical standpoint. He found that on a meat diet up to the end of the second year large quantities of muscle fibers passed through with the bowel-movement unchanged; but after that age they rapidly decreased in number. It is, therefore, worse than useless to add meat to the diet before the beginning of the third year. Eggs frequently produce profound disturbances in young infants, perhaps on account of the absorption of egg albumin, unchanged, in the blood-stream; and they should be kept from the diet-list until the beginning of the fourth year. These rules for feeding are generalized, and there may be many exceptions. Each child is to some extent a law unto itself, and this is especially true of those children with nervous or exudative diathesis. In conclusion, I wish to make a plea for greater uniformity in our rules for infant-feeding. Even more than in strictly medical affairs has the public the right to demand information. Heretofore, every new book and every public lecture on infant-feeding has deviated markedly from its predecessors, until the confused laity, and even general practitioners, have turned in disgust to proprietary foods and formulas. Pediatrics is a new science, and as such is bound to undergo rapid changes and conflicting opinions. But that need not hinder us from agreeing on certain fundamental facts which can be given as guides to the general practitioner and to the public. I believe that the simple rules for infant-feeding here laid down are neither too conservative nor too radical to serve as a basis of agreement upon which the medical profession may show to the public a united front on this important question. Such uniformity of opinion--and the sooner it can be reached the better--will not fail to have a beneficial effect on both the profession and the public. DISCUSSION