How should we prepare the food for the early months?  Granted you make up twenty ounces at a time, first obtain the ten per cent, or seven per cent, milk to be used, then take the number of ounces of this called for in the formula desired.  One must remember that to make twenty ounces of food one ounce of milk sugar (or three even tablespoonfuls) and one ounce of lime-water must be used.  The rest of the food is boiled water and the per cent milk.

First series—­Five formulas for early months for ten per cent milk: 
   Formulas. 1 2 3 4 5
   10 per cent milk 2 oz. 3 oz. 4 oz. 5 oz. 6 oz.
   Milk Sugar 1 oz. 1 oz. 1 oz. 1 oz. 1 oz. 
   Lime-water 1 oz. 1 oz. 1 oz. 1 oz. 1 oz. 
   Boiled water 17 oz. 16 oz. 15 oz. 14 oz. 13 oz.
                    ----- ----- ----- ----- -----
                     20 oz. 20 oz. 20 oz. 20 oz. 20 oz.

The milk sugar takes no space as it is always dissolved in the boiled water.

How can we strengthen this food?  By gradually increasing the milk (top milk) and decreasing the amount of water.

Second series—­Of five formulas for the early months from the seven per cent milk.  This is weaker in fat (cream), etc., about one-third: 

Formulas.            1         2        3         4         5
7 per cent, milk    2 oz.      3 oz.    4 oz.     5 oz.     6 oz. 
Milk Sugar          1 oz.      1 oz.    1 oz.     1 oz.     1 oz. 
Lime-water          1 oz.      1 oz.    1 oz.     1 oz.     1 oz. 
Boiled water       17 oz.     16 oz.    15 oz.   14 oz.    13 oz.
-----       -----     -----    -----     -----
Food              20 oz.      20 oz.    20 oz.   20 oz.    20 oz.

How can I decide which series of formulas to use?  A strong child with good digestion can be given from the first series, ten per cent milk.

A smaller, weaker child, and whose digestion is not so good, or with one who has tried the first series and did not do well, should use the second series of formulas.

[582 Mothers’ remedies]

What is the reason the food is made so weak at first?  The infant’s stomach is made to digest mother’s milk, not cows’ milk, so we must begin with weak cows’ milk, and the infant’s stomach can thus be trained to digest it.  Strong milk would be very liable to seriously upset the child’s digestion.

How rapidly can I increase the food in strength, that is, go from formula 1 to 2, 3, 4, and 5, of either series?  This can not be told, absolutely.  It depends upon the infant, how it bears the food.  Usually you can begin on formula one on the second day, formula two on the fourth day; three, after seven or ten days, but after that make the increase slower.  If the infant is large, strong and of good digestion,