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 Formula by Dr. A. F. Hess for 7th to 9th month:—

22½ ounces of Full Milk 7½    "      Oat or Barley Water 1½     "      Cane Sugar 30 grains of Table Salt (about ¼ teaspoonful)

This mixture fills 5 bottles—each to contain 6 ounces. Feed 3½ hours apart.

Formula by Prof. R. G. Freeman for 2d to 6th month:—

18 ounces of Full Milk 16½ "    Water 1½  "     Limewater 1½ "     Milk Sugar

This mixture fills 6 bottles—each to contain 6 ounces. Feed 3 hours apart.

After 9th month:—

Full pasteurized milk, 8 ounces every 4 hours.

When the modified milk can be obtained from a dairy laboratory where it is prepared with scientific care and accuracy, it is better to use it than to depend on home-made preparations, and in many cases a doctor's prescription may be necessary. Even if the modified cow's milk is prepared so as to contain apparently the same proportion of the various groups of nutrients as mother's milk, there may still be some essential difference. For instance, the protein in human milk consists mainly of albumin, while that of cow's milk is mostly casein. It is often a question whether the individual baby can digest the casein without trouble. A trifle of rennet ferment,—a fraction of a Junket Tablet,—added to the modified cow's milk just before feeding may be beneficial to overcome that defect. A little limewater also is healthful as it neutralizes any acid that may develop in the mixture. For the particular needs of the individual baby, a competent doctor should be asked to prescribe.