he may be able to take of formula five by the time he is three or four weeks old.  A weak child, or one with feeble digestion must go much slower, and such an one may not reach formula five until it is three or four months old.  Mothers should remember it is safer to increase the strength of the food very gradually; some infants should have an increase of only one-half ounce instead of one ounce; thus:  three to three and one-half ounces, etc.  Two or three days should be allowed at least between each increase of food.

May I not go by a general rule in increasing the food?  Yes, increase the food when the infant is not satisfied, but is digesting well.

How does an infant show this?  He drains the bottle hungrily and cries when it is taken away.  He may begin to fret a half hour or so before the time for the next feeding.  He often sucks his fingers immediately after feeding.

If I wish to prepare more than 20 ounces of food, what proportions shall I use?  To make 25 ounces, add one-fourth more of each ingredient.  To make 30 ounces, add one-half more of each ingredient.  To make 35 ounces, add three-fourths more of each ingredient.  To make 40 ounces, double each ingredient.

For example, 25 ounces of food would call for—­2-1/2 ounces of milk; 1-1/4 ounces of milk sugar; 1-1/4 ounces of lime-water; 21-1/4 ounces of boiled water.

For 30 ounces of food, proportions would be—­Milk, 3 ounces; milk sugar, 1-1/2 ounces; lime-water, 1-1/2 ounces; boiled water, 25-1/2 ounces.

How much more should be made at one time?  Five ounces may be made, but the first few days only two or three ounces of the additional should be given; four ounces the next two days, and after two days more may give the five ounces additional that has been made; that is, twenty-five ounces in all.

How much increase can be given at each feeding?  Not more than one-quarter of an ounce.

[All about baby 583]

FOOD FOR HEALTHY INFANTS DURING THE LATER MONTHS.

How long shall I continue this proportion, that is, the fat three times the proteids (curd)—­skim-milk?  Usually for three or four months.

What changes shall I then make in the food?  After you are using formula five of the first series; that is, six ounces of the ten per cent milk in twenty ounces of milk, increase the fat slowly, for the proportion of fat (three per cent), is near the limit for healthy children.

How then shall I strengthen the milk?  By raising the percentage of proteids (curds, skim-milk).

How can I do this?  Use the formulas derived from the seven per cent milk and discontinue the ten per cent milk.