640 



INDEX.' 



Hippocampus, development of, 

 158; marsupial receptacles of the 

 male, 342. 



minor, 198. 



Hippopotamus, nakedness of, 54. 



Hips, proportions of, in soldiers 

 and sailors, 31. 



Hodgson, S., on the sense of duty, 

 94. 



Hoftberg, on the horns of the 

 reindeer, 499; on sexual prefer- 

 ences shown hy reindeer, 520. 



Hoffman, Prof., protective colors, 

 278; fighting of frogs, 346. 



Hog-deer, 541. 



Hog, wart-, 515; river-, 516. 



Holland, Sir H., on the effects of 

 new diseases, 178. 



Homologous structures, corre- 

 lated variation of, 42. 



Homoptera, 279; stridulation of 

 the, and Orthoptera, discussed, 

 286. 



Honduras, Quiscalus major in, 244. 



Honey-buzzard of India, varia- 

 tion in the crest of, 418. 



Honey-suckers, moulting of the, 

 386; Australian, nidification of, 

 448. 



Honor, law of, 117. 



Hooker, Dr., forbearance of ele- 

 phant to his keeper, 101; on the 

 color of the beard in man, 553. 



Hookham, Mr., on mental con- 

 cepts in a.nimals, 81. 



Hoolock Gibbon, nose of, 146. 



Hoopoe, 366; sovmds produced by 

 the male, 371. 



Hoplopterus armatus, wing-spurs 

 of, 361. 



Hornbill, African, inflation of the 

 neck-wattle of the male during 

 courtship, 377. 



Hornbills, sexual difference in the 

 color of the eyes in, 420; nidifi- 

 cation and incubation of, 448. 



Home, C, on the rejection of a 

 brightly-colored locust by liz- 

 ards and birds, 287. 



Horns, sexual differences of, in 

 sheep and goats, 225; loss of, in 

 female merino sheep, 226; devel- 

 opment of, in deer, 228; develop- 

 ment of, in antelopes, 229; from 

 the head and thorax, in male 

 beetles, 292; of deer, 499, 502, 510; 

 and canine teeth, inverse devel- 

 opment of, 510. 



Horse, fossil, extinction of the, 

 in South America. 186; polygam- 

 ous, 213; canine teeth of male, 

 498; winter change of color, 537. 



Horses, rapid increase of, in 

 South America, 45; diminution 

 of canine teeth in, 52; dreaming, 

 72; of the Falkland Islands and 

 Pampas, 176; numerical propor- 

 tion of the sexes in, 211, 212; 

 lighter in winter in Siberia, 224; 

 sexual preferences in, 520; pair- 



ing preferently with those of the 

 same color, 535; numerical pro- 

 portion of male and female 

 births in, 240; formerly striped, 

 542, 



Hottentot women, peculiarities of, 

 170. 



Hottentots, lice of, 166; readily 

 become musicians, 565; notions 

 of female beauty of the, 573; 

 compression of nose by, 579. 



Hough, Dr. S., men's temperature 

 more variable than women's, 

 220; proportion of sexes in man, 

 237. 



House-slaves, difference of, from 

 fleld-slaves, 191. 



Houzeau, on the baying of tlie 

 dog, 72; on reason in dogs, 74; 

 birds killed by telegraph wires, 

 78; on the cries of domestic 

 fowls and parrots, 82, 85; ani- 

 mals feel no pity, 99; suicide in 

 the Aleutian islands, 113. 



Howorth, H. H., extinction of 

 savages, 179. 



Huber, P., on ants playing to- 

 gether, 67; on memory in ants, 

 72; on the intercommunication 

 of ants, 87; on the recognition 

 of each other by ants after sep- 

 aration, 289. 



Hue, on Chinese opinions of the 

 appearance of Europeans, 572. 



Huia, the, of New Zealand, 204. 



Human, man classed alone in a, 

 kingdom, 143. 



sacrifices, 93. 



Plumanity, unknown among some 

 savages, 114; deficiency of, 

 among savages, 119. 



Humboldt, A. von, on the ration- 

 ality of mules, 76; on a parrot 

 preserving the language of a 

 lost tribe, 177; on the cosmetic 

 arts of savages, 568; on the ex- 

 aggeration of natural characters 

 by man, 577; on the red painting 

 of American Indians, 577. 



Hume, D., on sympathetic feel- 

 ings, 105. 



Humming-bird, racket-shaped 



feathers in the tail of a, 380; 

 display of plumage by the male, 

 389. 



Humming-birds, ornament their 

 nests, 89, 408; polygamous, 214; 

 proportion of the sexes in, 243, 

 483; sexual differences in, 356, 

 436; pugnacity of male, 356; 

 modified primaries of male, 373; 

 coloration of the sexes of, 382; 

 display by, 437; nidification of 

 the, 447; colors of female, 447: 

 young of, 483. 



Humphreys, H. N., on the habits 

 of the stickle-back, 216, 330. 



Hunger, instinct of, 108. 



Huns, ancient, flattening of the 

 nose by the, 577. • 



