Index 



467 



Felis, 308. 



Fish, change of color, 16. 



Fishes, 7. 



Fishes, secondary sexual character of, 190. 



Flatfish, 137, 138. 



Flatworms, 417. 



Fleischmann, 45-57. 



Flounders, 228, 346, 347. 



Flowers, 9, 17, 21, 342, 399, 422, 429. 



Fly, 428. 



Foot of horse, 47. 



Forel, 5. 



Fossil horses, 52. 



Foxes, 210, 410. 



Franqueiros cattle, 315. 



Frogs, 193, 320, 382, 405. 



Frogs, cross-fertilization, 150. 



Fruit, down of, 133. 



Fundulus, 16. 



Galton, 236, 270-272, 289, 441. 



Gavials, 301. 



Geddes and Thompson, 417, 423, 426, 427. 



Geer, De, 178. 



Gegenbaur, 49. 



Gelasimus, 177. 



Geoffroy St.-Hilaire, 44, 67, 300-303. 



Geological evidence, 39. 



Gerbe, 429. 



Germinal selection, 154. 



Gibbon, 213. 



Gill clefts, 62, 63, 64, 73. 



Giraffe, 6, 203, 229, 248-249. 



Glacier, 28. 



Glowworm, 23. 



Goat, 206, 208. 



Gonionema, 399. 



Gorilla, 205. 



Gothic period, 47, 48. 



Gould, 197. 



Graba, 124, 125. 



Grafting, 153. 



Grasshoppers, 8, 188. 



Gray, 126. 



Greyhound, 134. 



Growth of plants, 17. 



Guillemots, 124. 



Guinea pigs, 232. 



Gunther, 190. 



Gymnotus, 132. 



Haeckel, 48, 49, 56, 70, 71, 79, 80, 82. 



Hartman, 187. 



Heart, 66, 67. 



Heliconids, 160. 



Helix, 344, 345-346. 



Hemiptera, 181. 



Heredity, 270. 



Hermaphroditic animals, 126. 



Hertwig, O., 78, 79, 80, 8i, 82, 83. 



Hertwig, R., 447. 



Hieracium, 330, 331. 



Hildebrand, 148. 



Hill, 252. 



Hipparion, 51. 



Hippeastrum, 148. 



His, 71, 72. 



Holmes, 72. 



Hornbills, 219. 



Horns, 229. 



Horse, 42, 224. 



Horse-chestnut, 24. 



Hothura, 410. 



Hottentots, 212. 



Hudson, 140, 195, 409-412. 



Humming-birds, 6, 197, 228. 



Hurst, 75, 76, 77, 78. 



Huxley, 49, 156, 233. 



Hyatt, 259. 



Hybrids, 149, 239. 



Hydatina, 417. 



Hydroides, 348. 



Hylobates, 205. 



Hymenoptera, 181. 



Ice, 28. 



Ichneumonidse, 181. 



Idioplasm, 335. 



Immunity, 13. 



India cattle, 208. 



Infanticide, 25. 



Inorganic adaptations, 26. 



Insectivorous plants, 10. 



Insects, coloration of, 7 ; wingless, 228. 



Instinct, 25, 139, 140, 141. 



Irish elk, 247. 



Jackson, 260. 

 Jaguar, 209. 

 Japanese cock, 163. 

 Jennings, 395. 

 Jonghe, 314. 

 Jordan, 292. 

 Joseph, 428. 

 Junco, 311. 



Kallima, 7, 161, 162, 358. 

 Kangaroo, 229, 351. 

 Katydid, 8. 



Kent, W. Saville, 191. 

 Kidneys, 66. 

 Kielmeyer, 58. 

 Kirby, 232. 

 Kiwi, 354. 



