484 



INDEX 



Heliconidae, not attacked by birds, 57 

 sometimes mimicked by other 



Heliconidse, 61 



Heliconiinae and Acraeinse, local re- 

 semblances of, 383 

 Helladotherium, 165 

 Hemiptera, protected by bad odour, 



52 

 Herbert, Rev. W., on song of birds, 



105 

 Herring-gull, change of nesting habits 



in, 115 

 Hesthesis, Longicorns resembling ants, 



69 



Hipparion, 164 

 Hippotherium, 164 

 Hispidae, imitated by Longicorns, 65 

 Bolothurida;, 136 

 Homalocranium semicinctum, 72 

 Hooker, Sir J., on flowers of Auckland 



isles, 408 

 Hornbills, 298 



Horns of beetles, probable use of, 372 

 Houses of American and Malay races 



contrasted, 100 

 Howling monkeys, 307 

 Humming-birds, number of, 312, 319 

 distinctness of, 312, 316 

 structure of, 313 

 colours and ornaments of, 314 

 descriptive names of, 316 

 motions and habits of, 316 

 display of ornaments by males, 320 

 food of, 320 

 nests of, 322 



geographical distribution and vari- 

 ation of, 322 

 of Juan Fernandez, 324 

 influenced by varied conditions 



in South America, 329 

 relations and affinities of, 330 

 sternum of, 332 



feather-tracts of, 333 



resemblance of swifts to, 333 



nestlings of, 334 



differences from sun-birds, 334 

 Huxley, Professor, on "Physical Basis 

 of Life," 207 



on volition, 212 

 Hyaenictis, 165 



Hybernia, wintry colours of this 

 genus, 45 



ICTERID.S:, sexual colouring and nidi- 



fication of, 127 

 Ichthyopterygia, 164 

 Iguanas, 303 

 Imitation, the effects of, in man's 



works, 99 

 Increase, checks to, studied by 



Darwin, 458 

 Indians, how they travel through 



trackless forests, 95 

 Insects, protective colouring of, 41 

 mimicking species of other orders, 



68 

 senses of, perhaps different from 



ours, 92 

 wingless, 290 

 general observations on tropical, 



291 



Instinct, how it may be best studied, 

 91 



definition of, 93 



in many cases assumed without 



proof, 94 



if possessed by man, 94 

 supposed, of Indians, 95 

 supposed to. be shown in the 

 construction of birds' nests, 98 

 Intellect of savages compared with 



that of animals, 192 

 Intellectual power, range of, in man, 



191 



Interference colours in animals, 358 

 Islands, influence of locality on colour 



in, 384 



Ithomia, mimicked by Leptalis, 59 

 I. ilerdina, mimicked by four 

 groups of Lepidoptera, 60 



JACAMARS, 297 



Jamaica swift altering position of 



nest, 116 

 Jeitteles, Professor, on various forms 



of nests of Hirundo urbica, 115 

 Jerdon, Mr., on incubation by males 



in Turnix, 81 

 Juan Fernandez, humming-birds of, 



324 



KALLIMA inachis and Kallima para- 

 lekta, wonderful resemblance of, to 

 leaves, 43-48 



Kerner on the unbidden guests of 

 plants, 466 



