Cattle, products of human selection, 137; resemblance, 157.
Cebidæ, true monkeys, 160, 161, 162.
Cells, 19, 20, 21; sex, 144; human, composition of, 156; of ectoderm and endoderm, 255, 256, 257, 258.
Celts, 218.
Cercopithecidæ, 160, 162.
Cerebrum, 215.
Cetacea, 40.
Chemical transformation, 17.
Chick, development of, 60, 61.
Chimpanzee, 163, 164, 195.