- Houses of American and Malay races contrasted, 213.
- Huxley, Professor, on “Physical Basis of Life,” 362; on volition, 368.
- Hyænictis, 300.
- Hybernia, wintry colours of this genus, 62.
- Hymenoptera, large number of, peculiar to Celebes, 196.
- Icteridæ, sexual colouring and nidification of, 244.
- Icthyopterygia, 298.
- Ideopsis daos, 180.
- Imitation, the effects of, in man’s works, 212.
- Indians, how they travel through trackless forests, 207.
- Insects, protective colouring of, 56; mimicking species of other orders, 97; senses of, perhaps different from ours, 202, 203.
- Instinct, how it may be best studied, 201; definition of, 203; in many cases assumed without proof, 205; if possessed by man, 206; supposed, of Indians, 207; supposed to be shown in the construction of birds’ nests, 211.
- Intellect of savages compared with that of animals, 341.
- Intellectual power, range of, in man, 339.
- Iphias glaucippe, 172.
- Ithomia, mimicked by Leptalis, 83.
- Ithomia ilerdina, mimicked by four groups of Lepidoptera, 84.
- Java, relations of, to Sumatra and Borneo, 193.
- Jamaica swift altering position of nest, 228.
- Jerdon, Mr., on incubation by males in Turnix, 115.
- Kallima inachis and Kallima paralekta, wonderful resemblance of, to leaves, 59-61.
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