wet-nurses in the day, as mix together the milk of various cows, which
must differ, even as the animals themselves, in its constituent
qualities. Great attention is also paid to the pasture, or other food
of the cow thus appropriated."] and that it be new and of good
quality, for if not it will turn acid and sour, and disorder the
stomach, and will thus cause either flatulence or looseness of the
bowels, or perhaps convulsions. The only way to be sure of having it
from _one_ cow, is (if you have not a cow of your own), to have the
milk from a _respectable_ cow keeper, and to have it brought to your
house in a can of your own (the London milk cans being the best for
the purpose). The better plan is to have two cans, and to have the
milk fresh and fresh every night and morning. The cans, after each
time of using, ought to be scalded out, and, once a week the can
should be filled with _cold_ water, and the water should be allowed to
remain in it until the can be again required.

Very little sugar should be used in the food, as much sugar weakens
the digestion. A small pinch of table-salt ought to be added to
whatever food is given, as "the best savour is salt." Salt is most
wholesome--it strengthens and assists digestion, prevents the
formation of worms, and, in small quantities, may with advantage be
given (if artificial food be used) to the youngest baby.

35. _Where it is found to be absolutely necessary to give an infant
artificial food_ WHILST SUCKLING, _how often ought he to be fed_?

Not oftener than twice during the twenty four hours, and then only in
_small_ quantities at a time, as the stomach requires rest, and at the
same time, can manage to digest a little food better than it can a
great deal. Let me again urge upon you the importance, if it be at