According to the classification of the Food Collection, Flesh is placed
next to Wheat and other cereals in Group 3, which includes _nitrogenous
substances capable of producing both flesh and force_.
Animal food is composed of the same materials as vegetable food. It is
formed of the same elements, and presents the same proximate principles.
It contains water and mineral matters of the same kind as plants. Its
force-producing substances appear in the form of fat, and its flesh and
force-producing substances in the form of fibrin and albumen.