328 



FEOGS. 



INDEX. 



Frogs on islands, ii. 1 82. 

 Fruit-trees, gradual improvement 



of, i. 42. 



in United States, i. 104. 



, varieties of, acclimatised in 



United States, i. 176. 

 Fuci, crossed; ii. 15, 23. 

 Fur, thicker m cold climates, i. 166. 

 Furze, ii. 241. 



G. 



Galapagos Archipelago, birds of, 

 ii. 179. 



, productions of, ii. 188, 190. 



Galaxias, its wide range, Ii. 172. 



Galeopithecus, i. 217. 



Game, incfease of, checked by ver- 

 min, i. 86. 



Gartner, on sterility of hybrids, ii. 

 3, 4, 11. 



, on reciprocal crosses, ii. 15. 



, on crossed maize and verbas- 



cum, ii. 37. 



, on comparison of hybrids and 



mongrels, ii. 40, 41, 42. 



Gaudry, Prof.j on intermediate ge- 

 nera of fossil mammals in Attica, 

 ii. 107. 



Geese, fertility when crossed, ii. 9, 

 10. 



, upland, L 222. 



Geikie, Mr., on subaerial denuda- 

 tion, IL 68. 



Genealoffy, important in classifica- 

 tion, ii. 212. 



Generations, alternate, ii. 239. 



Geoffroy St. Hilaire, on balance- 

 meat, i. 182. 



, on homologous organs, ii. 233. 



, Isidore, on variability of re- 

 peated parts, i. 184. 



, or correlation, in monstrosi- 

 ties, i. 13. 



, on correlation, L 179. 



, on variable parts being often 



monstrous, i. 190. 



Geographical distribution, ii. 129. 



Geography, ancient, ii. 303. 



Geology, future progress of, ii 302. 



, imperfection of the record, ii. 



303. 



Gervais, Prof., on Typotherium, ii. 

 108. 



Giraffe, tail of, i. 245. 



, structure of, L 276. 



Glacial period, ii. 151. 



Glacial periodj affecting the Morth 



and South, ii. 158. 

 Glands, mammary, i. 295. 

 Gmelin, on distribution, ii. 151. 

 Godwin- Austen^ Mr., on the Malay 



Archipelago, li. 74. 

 Goethe, on compensation of growth, 



i. 182. 

 Gomphia, i. 272. 

 Gooseberry, grafts of, ii. 19. 

 Gould, Dr. Aug. A., on land-shells^ 



ii. 186. 



, Mr., on colours of birds, i. 165. 



, on instincts of cuckoo, i. 333. 



, on distribution of genera of 



birds, ii. 195. 

 Gourds, crossed, ii. 38. 

 Graba, on the Uria lacrymas, i. 113. 

 Grafting, capacity of, ii. 18, 19, 20. 

 Granite, areas of denuded, ii. 64. 

 Grasses, varieties of, i. 137. 

 Gray, Dr. Asa, on the variability of 



oaks, i. 62. 

 , on man not causing variabil- 

 ity, i. 98. 



, on sexes of the holly, i. 116. 



, on trees of the United States, 



i. 123. 

 , on naturalised plants in the 



United States, i. 139. 



,'on Eestivation, i. 272. 



, on Alpine plants, ii. 151. 



, on rarity of intermediate va- 

 rieties, i. 212. 

 , Dr. J. E., on striped mule, L 



199. 

 Grebe, i. 221. 

 Grimm, on asexual reproduction, ii 



240. 

 Groups, aberrant, ii. 227. 

 Grouse, colours of, i. 104. 



, red, a doubtful species, i. 59. 



Growth, compensation of, i. 182. 

 Gunther, Dr., on flat-fish, i. 292. 



, on prehensile tails, i. 295. 



, on the fishes of Panama, ii. 



131. 

 , on the range of fresh-wat«r 



fishes, ii. 172. 

 , on the limbs of Lepidosiren, 



ii. 258. 



H. 



Haast, Dr., on glsciers of New Zea- 

 land, ii. 159, 



Habit, effect of, under domestica- 

 tion, i. 12, 



