CLINE, Mr., on the skull in horned and hornless rams.

CLOS, on sterility in Ranunculus ficaria.

CLOTZSCH, hybrids of various trees.

CLOVER, pelorism in.

COATE, Mr., on interbreeding pigs.

COCCUS of apple-trees.

COCHIN fowls. -occipital foramen of, figured. -section of skull of, figured. -cervical vertebra of, figured.

COCHINEAL, persistence of. -preference of, for a particular cactus.

Cochlearia armoracia.

COCK, game, natural selection in. -spur of, grafted on the comb. -spur of, inserted into the ear of an ox. -effect of castration upon the.