It is important with all children that the increase in the food be made very gradually. It may be best with many infants to increase the milk by only half an ounce in twenty ounces of food, instead of one ounce at a time, as indicated in the tables. Thus, from three ounces the increase would be to three and one-half ounces; from four ounces to four and one-half ounces, etc. At least two or three days should be allowed between each increase in the strength of the food. PEPTONIZED MILK Another modification which at times may be ordered by your physician is peptonized milk. Since it is infrequent for the proteins of milk to be the cause of indigestion, peptonized milk has only a limited use, chiefly in cases of acute illness. The milk is peptonized in the following manner: Place the peptonizing powder (it is procurable in tubes or tablets from the drug store) in a small amount of milk, and after being well dissolved, put into the bottle or pitcher with the plain or modified milk, after which the whole is shaken up together. The bottle is then put into a large pitcher containing water heated to about 110 deg. F. or as warm as would bear the hand comfortably, and left for ten or twenty minutes (if the milk is to be partially peptonized). To completely peptonize the milk, two hours are required. Either of these formulas is only used on the advice of a physician. BUTTERMILK In many cases of chronic intestinal indigestion, buttermilk is used in place of the milk. It is prepared as follows: After the cream has been taken from the milk and it has been allowed to come to a boil, it is cooled to just blood heat. A buttermilk tablet, having first been dissolved in a teaspoonful of sterile water, is now stirred into the quart of warmed, skimmed milk and allowed to stand at room temperature for twenty-four hours at which time it should look like a smooth custard. With a sterile whip this is now beaten and is ready for the sugar and the boiled water which is added according to the written prescription from the doctor. CONDENSED MILK Under no circumstances should condensed milk be used as the sole food of the baby for more than one month. Children often gain upon it, but as a rule they have little resistance, and they are very prone to develop rickets and oftentimes scurvy; and, as noted elsewhere, orange juice should always be administered at least once during the twenty-four hours as long as condensed milk is used. Of all the brands of condensed milk, those only should be selected which contain little or no cane sugar. Perhaps the "Peerless Brand" of evaporated milk is the most reliable and in the preparation of food from this evaporated milk the same amount of sugar, etc., should be added as we do in the preparation of "whole milk" or "top milk."