onnet, 70.

Borneo, 164.

Brachiopods, 95.

Brahma, 299, 304.

Brain, 215, 235-240.

Brontosaurus, 94.

Brown-Sequard, 148.

Buddha, 299.

Buffon, 114, 135.

Butterflies, 67, 206, 207, 259.

Carbohydrate, 23, 24.

Carbon, atom, 22; 25, 27.

Carnivora, 35, 37, 38, 39, 40;
order of, 157.

Caterpillar, larva of, 259.

Cats, Manx, Angora, Persian, 37, 39;
domesticated, 137;
intelligence of, 208, 209.

Cattle, products of human selection, 137;
resemblance, 157.

Cebidae, 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.

Cercopithecidae, 160, 162.

Cerebrum, 215.

Cetacea, 40.

Chemical transformation, 17.

Chick, development of, 60, 61.

Chimpanzee, 163, 164, 195.

Chromatin, 143, 144.

Civilization, a product of evolution, 272.

Classes, 32.

Classification, 32.

Clifford, 238.

Coccyx, 168.

Communities, cell, 258;
insect, 258, 260-264.

Comparative anatomy, 35, 37, 39;
any form will disclose development, 57;
amphibia evolved from fishes, 64;
Law of Recapitulation, 66;
insects arisen from wormlike ancestors, 67;
larvae of insects, 67;
higher animals evolved from two-layered saccular ancestors, 68; 70, 71;
supplements comparative embryology, 72;
appearance of great classes of vertebrates, 94;
proves order of evolution, 163.

Composition, chemical, 15.

Compounds, organic, 29.

Conger-eel, 123, 124, 127.

Consanguinity, essential likeness, 54.

Conscience, 287.

Consciousness, human, 234, 235.

Crabs, 48, 49, 66;
hermit, 66.

Crustacea, lobsters, crabs, 48, 49;
barnacles, 49, 50; 82.

Cuvier, 158, 78;
a believer in special creation, 79.

Curve of error, 120.

Cyclones, 85.

Cyclostomes, 156.

Daphnia, 205.

Darwin, Charles, 80, 100, 102, 115, 116, 117;
Origin of Species, 116, 124, 130, 132, 135;
Erasmus, 135, 136, 138, 142, 143.

Deer, 42;
fossil, of North America, 97, 98.

Development, 54;
a natural process, 56.

De Vries, 145, 146;
his mutation theory, 147, 148.

Dinosaurs, 94.

Distribution, geographical, 32.

Dogs, 38, 39;
embryo of, 66;
varied forms of, 137;
pointer, sheep-dog, instincts of, 208;
intelligence of, 208, 209.

Dubois, 173.

Ducksbill, or Ornithorhynchus, bottom of mammalian scale, 43.

Ducksworth, 184.

Eagle, 44.

Earthquake, 85.

Echidna, b