Dilution. Cow's milk is more easily digested when diluted with water, and we are more likely to dilute too little than too much. The amount of water used should vary with the age and strength of digestion of the child. As a rule the new-born infant should have two parts water to one of milk; at four months equal parts of milk and water; at ten months one part water and two parts milk. When digestion is particularly feeble, it may be necessary to dilute milk with six or eight times its bulk of water.
Manner of Giving. It is best to give milk from a bottle so constructed that suction is necessary, for it induces the flow of the digestive juices. Use the plain rubber nipple; those with tube attachments which extend into the bottle are to be avoided, on account of the difficulty of making them perfectly clean inside. Cultures from these tubes always give large numbers of bacteria, as do also those made from the nipples, unless they are boiled.
Temperature of Food, and Intervals of Feeding
The intervals of feeding will vary somewhat with the age of the child. Once in two or two and a half hours during the day for the first six months, and every three hours from the sixth to the twelfth month, is the general rule.
The temperature of the meal should be 100° Fahr.
A babe needs less variety in its food than older children, and they in turn require less than grown persons; but both must have a certain proportion of the five essential food principles.
There is an impression in the minds of many that children should not have fat. This has perhaps sprung from the fact that mother's milk has a watery, thin appearance. It seems not rich; nevertheless it has a due proportion of fat, and it is extremely important that this be maintained when cow's milk is diluted, for this cream is the best addition.
Fat is needed not only for the growth of brain and nerves, which is very rapid in children, but also for the perfect formation of other tissues.
The following table is that given by Dr. Louis Starr as a guide for feeding: