Page:Descent of Man 1875.djvu/670

654

on the relative size of the sexes in insects, 279; on the Fulgoridæ, 281; on the habits of Termites, 291; on difference of colour in the sexes of beetles, 294; on the horns of the male lamellicorn beetles, 297; on hornlike processes in male Curculionidæ, 299; on the pugnacity of the male stag-beetle, 299.
 * Kite, killed by a game-cock, 363.
 * Knot, retention of winter plumage by the, 391.
 * Knox, R., on the semilunar fold, 17; on the occurrence of the supracondyloid foramen in the humerus of man, 21; on the features of the young Memnon, 168.
 * Koala, length of the cœcum in, 20.
 * Kobus ellipsiprymnus, proportion of the sexes in, 247.
 * Kölreuter, on the sterility of hybrid plants, 172.
 * Koodoo, development of the horns of the, 234; markings of the, 543.
 * Köppen, F. T., on the migratory locust, 283.
 * Kordofan, protuberances artificially produced by natives of, 574.
 * Koraks, marriage customs of, 598.
 * Körte, on the proportion of sexes in locusts, 254; Russian locusts, 283.
 * Kovalevsky, A., on the affinity of the Ascidia to the Vertebrata, 159, 160.
 * , W., on the pugnacity of the male capercailzie, 363; on the pairing of the capercailzie, 367.
 * Krause, on a convoluted body at the extremity of the tail in a Macacus and a cat, 23.
 * Kupffer, Prof., on the affinity of the Ascidia to the Vertebrata, 160.


 * Labidocera Darwinii, prehensile organs of the male, 266
 * Labrus, splendid colours of the species of, 342.
 * mixtus, sexual differences in, 337, 341.
 * paxo, 342.
 * Lacertilia, sexual differences of, 354.
 * Lafresnaye, M. de, on birds of paradise, 385.
 * Lamarck, on the origin of man, 3.
 * Lamellibranchiata, 262.
 * Lamellicorn beetles, horn-like processes from the head and thorax of, 295, 298; influence of sexual selection on, 301.
 * Lamellicornia, stridulation of, 303.
 * Lamont, Mr., on the tusks of the walrus, 502; on the use of its tusks by the walrus, 513; on the bladder-nose seal, 528.
 * Lampornis porphyrurus, colours of the female, 454.
 * Lampyridæ, distasteful to mammals, 277.
 * Lancelet, 159, 165.
 * Landois, H., gnats attracted by sound, 280; on the production of sound by the Cicadæ, 281; on the stridulating organ of the crickets, 284; on Decticus, 285; on the stridulating organs of the Acridiidæ, 286; stridulating apparatus in Orthoptera, 288; sounds produced: by Atropus, 291; on the stridulation of Necrophorus, 302; on the stridulant organ of Cerambyx heros, 303; on the stridulant organ of Geotrupes, 303; on the stridulating organs in the Coleoptera, 304; on the ticking of Anobium, 306.
 * Landor, Dr., on remorse for not obeying tribal custom, 114.
 * Language an art, 86; articulate, origin of, 86; relation of the progress of, to the development of the brain, 87; effects of inheritance in production of, 88; complex structure of, among barbarous nations, 91; natural selection in, 91; gesture, 178; primeval, 180; of a lost tribe preserved by a parrot, 181.
 * Languages, presence of rudiments in, 90; classification of, 90; variability of, 90; crossing or blending of, 90; complexity of, no test of perfection or proof of special creation, 92; resemblance of, evidence of community of origin, 148.
 * and species, identity of evidence of their gradual development, 90.
 * Lanius, 462; characters of young, 464.
 * rufus, anomalous young of, 482.