Brontosaurus, 94.
Brown-Séquard, 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.