To increase when the infant is not satisfied but is digesting well.

_How does an infant show that he is not satisfied?_

He drains the bottle eagerly and cries when it is taken away. He often
forms the habit of sucking his fingers immediately after. He begins to
fret half an hour or an hour before the next feeding is due.

_In the series of formulas given in the table the quantities are
mentioned for making only twenty ounces of food. How should it be
prepared when more than this quantity is needed?_

It is equally convenient to make up 25 ounces, 30 ounces, 35 ounces,
or 40 ounces at a time.

To make--

25 ounces of any formula add one quarter more of each ingredient.
30 " " one half " "
35 " " three quarters " "
40 " " twice as much " "

Thus 25 ounces of Formula I would be obtained by using 2½ ounces of
milk, 1¼ ounces of sugar and lime-water, 21¼ ounces of water; 30
ounces of the same would require 3 ounces milk, 1½ ounces lime-water
and sugar, and 25½ ounces water; 35 ounces would require 3½ ounces
milk, 1¾ ounces lime-water and sugar, and 29¾ ounces water. The amount
of water need not be calculated in any case, but after measuring
carefully the other ingredients enough water should be added to bring
the total up to the amount required.