Helix pomatia, example of individual attachment in.
Hellins, J., proportions of sexes of Lepidoptera reared by.
Helmholtz, on pleasure derived from harmonies; on the human eye; on the vibration of the auditory hairs of crustacea; the physiology of harmony.
Hemiptera.
Hemitragus, beardless in both sexes.
Hemsbach, M. von, on medial mamma in man.
Hen, clucking of.
Hepburn, Mr., on the autumn song of the water-ouzel.
Hepialus humuli, sexual difference of colour in the.
Herbs, poisonous, avoided by animals.