he organ, is hung up, like a
bladder, to dry; when required, a piece is cut off, put in a jug, a
little warm water poured upon it, and after a few hours it is fit for
use; the liquid so made being called _rennet_. A little of this rennet,
poured into a basin of warm milk, at once coagulates the greater part,
and separates from it a quantity of thin liquor, called _whey_. This is
precisely the action that takes place in the infant's stomach after
every supply from the breast. The cause is the same in both cases, the
acid of the gastric juice in the infant's stomach immediately converting
the milk into a soft cheese. It is gastric juice, adhering to the calf's
stomach, and drawn out by the water, forming rennet, that makes the
curds in the basin. The cheesy substance being a solid, at once
undergoes the process of digestion, is separated into _chyle_ by the
bile, and, in a few hours, finds its way to the infant's heart, to
become blood, and commence the architecture of its little frame. This is
the simple process of a baby's digestion:-milk converted into cheese,
cheese into _chyle_, chyle into blood, and blood into flesh, bone, and
tegument-how simple is the cause, but how sublime and wonderful are the
effects!

2458. We have described the most important of the three functions that
take place in the infant's body-respiration and digestion; the third,
namely, circulation, we hardly think it necessary to enter on, not being
called for by the requirements of the nurse and mother; so we shall omit
its notice, and proceed from theoretical to more practical
considerations. Children of weakly constitutions are just as likely to
be born of robust parents, and those who earn their bread by toil, as
the offspring of luxury and affluence; and, indeed, it is against the
ordinary providence of Nature to suppose the children of the hardworking
and necessitous to be hardier and more vigorous than those of parents
blessed with ease and competence.

2459. All children come into the world in the same imploring
helplessness, with the same general organization and wants, and
demanding either from the newly-awakened mother's love, or from the
memory of motherly feeling in the nurse, or the common appeals of
humanity in those who undertake the earliest duties of an infant, the
same assistance and protection, and the same fostering care.

THE INFANT.

2460. We have already described the phenomena produced on the new-born
child by the co