GURNEY, Mr., owls breeding in captivity. -appearance of "black-shouldered" among ordinary peacocks.

HABIT, influence of, in acclimatisation.

HACKEL, on fissiparous reproduction. -on cells. -on the double reproduction of medusae. -on inheritance.

HACKLES, peculiarities of, in fowls.

HAIR, on the face, inheritance of, in man. -peculiar lock of, inherited. -growth of, under stimulation of skin. -homologous variation of. -development of, in the brain.

HAIR and teeth, correlation of.

HAIRY family, corresponding period of inheritance in.

HALF-CASTES, character of.

HALF-LOP rabbits, figured and described. -skull of.

Haliaetus leucocephalus, copulating in captivity.