that is to
say less of the main constituents of all animal solids and fluids, and a
greater proportion of what are termed the hydro-carbonates, such for
instance as sugar; or, to state the same thing differently, the elements
which serve for nutrition are in smaller proportion than in fresh milk
to those which minister to respiration. They are not only less
nutritious, but the large quantity of sugar which they contain not
infrequently disagrees with the child, and causes bowel complaint. I do
not know how far the so-called unsweetened condensed milk which has of
late come into the market is free from this objection; but I have always
preferred the Aylesbury condensed milk, which is manufactured with
sugar, to the Swiss condensed milk, into which, as I have been given to
understand, honey largely enters.

How much food does an infant of a month old require? what intervals
should be allowed between each time of feeding? and how should the food
be given? are three questions which call for a moment's notice. The
attempt has been made to determine the first point by two very
distinguished French physicians, who weighed the infants before and
after each time of sucking. Their observations, however, were not
sufficiently numerous to be decisive, and their results were very
conflicting; the one estimating the quantity at two pounds and a quarter
avoirdupois, which would be equivalent to nearly a quart, the other at
not quite half as much; but the observations of the latter were made on
exceptionally weak and sickly infants. Infants no doubt vary, as do
grown people, as to the quantity of food they require. I should estimate
from my own experience and observation, apart from accurate data, a pint
as the minimum needed by an infant a month old; and while Dr.
Frankland's estimate of a pint and a half for an infant of five months
seems to me very reasonable, I should doubt its sufficing for a child of
nine months unless it were supplemented by other food.

The infant during the first month of life takes food every two hours,
and even when asleep should not be allowed to pass more than three
hours; and this frequent need of food continues until the age of two,
sometimes even until three, months. Afterwards, and until six months
old, the child does not need to be fed oftener than every three hours
during the twelve waking hours, and every four hours during the sleeping
time. Later on, five times in the twenty-four hours, namely th