232 



INDEX 



Fulmar petrel, 40 

 Function, change of, 166 



Galapagos islands, 208, 210 



Galeopithecus, 169 



Gallus bankiva, 35 



Galton, Francis, on colour of 



zebra, 125 

 Gamecock, 34 

 Gasteropoda, shells of, go 

 Geographical distribution, 70 

 Geological evidences of evolution, 



62 

 Geological record, imperfection 



of, 59 

 Gill-clefts, 170, 175, 181, 187, 194 

 Giraffe, colour of, 125 

 Globigerina, 58 

 Glochidium larva, 102 

 Goats, introduction of into St. 



Helena, 41 

 Goethe, 10 

 Gray, Asa, 22 



Greenland, fossil plants of, 50 

 Guanaco, 71 

 Gurnard, 169 

 Gymnotus, 170 



HAEMOGLOBIN, II 9 



Haliotis, eye of, 107 

 Hamburgh fowl, 35 

 Hawk, epigamic coloration of, 141 

 Helena, St., destruction of forests 



by goats, 41 

 Heliconida, warning colours in, 



134, 137 



Henslow, Professor, 204 



Herald moth, protective resem- 

 blance in, 128 



Heron, protective resemblance in, 

 125 



Herring, number of eggs laid by, 



39 

 Hilaire, St., 14 

 Hipparion, 67, 69, 96 



Hippopotamus, fossils of, 56 



Hooker, Sir Joseph, 22 



Hornet moths, mimicry in, 139 



Horse, ancestry of, 67, 69 

 feet of, compared with man, 67 



Humming-birds, epigamic color- 

 ation of, 143 



Hutton, 15 



Huxley, Professor T. H., 17, 65, 

 76, 194, 202, 215, 223 



Hyaena, fossil forms of, 56 



Hyacinths, variation in, 43 



Hy lodes, development of, 99, 10 1, 

 176 



Hymenopus bicornis, 132 



Hyo-mandibular cleft, change of 

 function in, 169 



Hyracotherium, 56 



Ichneumon fly, 41 

 Ichthyosaurus, 57, 69, 177 

 Importance of infinitely little 



things, 227 

 Inheritance, 48 



Insects, abrupt metamorphosis in, 

 103 



gradual metamorphosis in, 105 



instinct in, 172 

 " Insectivorous plants," 219 

 Instinct, 172 

 Insufficiency of time, 170 



Jacobin pigeon, 28 

 Jungle-fowl, 35 



Kainozoic period, 56 

 Kallima, 127 



Kangaroo, geographical distribu- 

 tion of, 74 

 Kea, 45 



Kerguelen island, insects of, 47 

 " Krao," 157 



Lamarck, ii 



Language, evolution in, 63, 196 



