To the Editor:—Since publication of the paper on addition of apple to the diet of infants (Reithel, F. J., and Manville, I. A.: Advantages of Adding Apple to Milk Formulas, Am. J. Dis. Child. 56:237 [Aug.] 1938) I have received inquiries as to where the apple powder may be obtained and how it is used. In regard to the first question, Appella apple powder can be obtained through dispensers of drugs. It is being distributed by the Frederick Stearns Company, of Detroit.
The second question requires a more detailed answer. If the babies' formula is being built up from cow's milk, we use a good brand of evaporated milk, which is diluted to twice its volume with water containing 10 per cent apple powder. The water is prepared by placing 2 moderately heaped teaspoonfuls of apple powder in an 8 ounce (237 cc.) container. Water is added slowly,