750 INDEX. 



Heliopathes, stridulation ])eculiar to the male, 345. 



Heliothrix uuriculata, young of, 532, 583. 



JJelix pomatidy example of individual attachment in, 297. 



Hellins, J . , pio])ortions of sexes of, Lepido])tera reared by, 285. 



Hemboltz, on pleasure derived from harmonies, 104; on the human 

 eye, 501; on the vibration of the auditory hairs of Crustacea, 649; 

 the physiology of harmony, 649. 



Hemiptera, 318. 



Hemitraguif, beardless in both sexes, 607. 



Hemsbach, M. von, on medial mamma in man, 42. 



Hen, clucking of, 418. 



Hepburn, Mr., on the autumn song of the water-ouzel, 420. 



Hepialus humuli, sexual difference of color in the, 358. 



Herbs, poisonous, avoided by animals, 75. 



Hermaphroditism, of embryos, 183; in fishes, 184. 



Herodias bubulcus, vernal moult of, 445. 



Heron, Sir R., on the habits of pea-fowl, 475, 477, 503. 



Herons, love-gestures of, 331; decomposed feathers in, 437; breed- 

 ing plumage of, 443, 444; young of the, 548, 553, sometimes dimor- 

 phic, 552; continued growth of crest and plumes in the males of 

 some, 552; change of color in some, 562. 



Hesperomys cognatus, 648. 



Hetoerina, proportion of the sexes in, 287; difference in the sexes 

 of, 328. 



Heterocerus, stridulation of, 842. 



Hewitt, Mr., on a game cock killing a kite, 412; on the recognition 

 of dogs and cats by ducks, 468; on the pairing of a wild duck with a 

 pintail drake, 471; on the courtship of fowls, 478; on the coupling 

 of pheasants with common hens, 477. 



Hilgendorf , sounds produced by crustaceans, 309. 



Hindoo, his horror of breaking his caste, 138, 140. 



Hindoos, local differences of stature among, 35; difference of, from 

 Europeans, 218; color of the beard in, 637. 



IlippareJda Jamra,4SS; instability of the ocellated spots of, 486. 



Hippocampus, development of, 185; marsupial receptacles of the 

 male, 392; 1iij)j)ocampus minor, 227, 230. 



Hippopotamus, nakedness of, 68. 



Hips, proportions of, in soldiers and sailors, 36. 



Hodgson, S., on the sense of duty. 111. 



Hoffberg, on the horns of the reindeer, 574; on sexual preferences 

 shown by reindeer, 598. 



Hoffman, Prof., protective colors, 318; fighting of frogs, 396. 



Hog, wart, 592; river, 593. 



Hog-deer, 623. 



Holland, Sir H. , on the effects of new diseases, 208. 



Homologous structures, correlated variation of, 49. 



Homoptera, 319; stridulation of the, and Orthoptera, discussed, 327. 



Honduras, Quiscalus major in, 281. 



Honey-buzzard of India, variation in the crest of, 481. 



Honey-sucker, females and young of, 533. 



Honey-suckers, moulting of the, 444; Australian, nidification of , 516. 



Honor, law of, 137. 



Hooker, Dr., forbearance of elephant to his keeper, 117; on the 

 color of the beard in man, 637. 



