COCK'S-COMB, varieties of the.
COCOONS of silkworms, variations in.
CODFISH, bulldog. -number of eggs in the.
Coelogenys paca.
COLIN, prepotency of the ass over the horse. -on cross-breeding. -on change of diet.
COLLINSON, PETER, peach-tree producing a nectarine.
COLORATION in pigeons, an evidence of unity of descent.
COLOUR, correlation of, in dogs. -persistence of, in horses. -inheritance and diversity of, in horses. -variations of, in the ass. -of wild or feral cattle. -transmission of, in rabbits. -peculiarities of, in Himalayan rabbits. -influence of. -correlation of, in head and limbs. -correlated with constitutional peculiarities.
COLOUR and odour, correlation of.
COLOUR-BLINDNESS, hereditary. -more common in men than in women. -associated with inability to distinguish musical sounds.