492 



INDEX. 



Gartner, on reciprocal crosses, 263. 

 on crossed maize and verbascum, 



285. 

 on comparison of hybrids and 

 mongrels, 287, 288. 

 Gaudry, Prof., on intermediate 

 genera of fossil mammals in 

 Attica, 335. 

 Geese, fertility when crossed, 266. 



upland, 159. 

 Geikie, Mr., on subaerial denuda- 

 tion, 296. 

 Genealogy, important in classifi- 

 cation, 403. 

 Generations, alternate, 428. 

 Geographical distribution, 350. 

 Geography, ancient, 472. 

 Geology, future progress of, 472. 



imperfection of the record, 472. 

 Gervais, Prof., on Typotherium, 



335. 

 Giraffe, tail of, 175. 

 structure of, 197. 

 Glacial period, 365. 

 affecting the North and South, 

 371. 

 Glands, mammary, 210. 

 Gmelin, on distribution, 366. 

 Godwin-Austen, Mr., on the Malay 



Archipelago, 311. 

 Goethe, on compensation of 



growth, 131. 

 Gomphia, 194. 

 Gooseberry, grafts of, 272. 

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



391. 

 Gould, Mr., on colors of birds, 120. 

 on instincts of cuckoo, 237. 

 on distribution of genera of birds, 

 396. 

 Gourds, crossed, 285. 

 Graba, on the Uria lacrymas, 80. 

 Grafting, capacity of, 271, 272. 

 Granite, areas of denuded, 304. 

 Grasses, varieties of, 97. 

 Gray, Dr. Asa, on the variability 

 of oaks, 45. 

 on man not causing variability, 



69. 

 on sexes of the holly, 82. 

 on trees of the United States, 



87. 

 on naturalized plants in the 



United States, 99. 

 on aestivation, 194. 



Gray, Dr. Asa, on rarity of Inter- 

 mediate varieties, 152. 



on Alpine plants, 366. 

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



143. 

 Grebe, 159. 

 Grimm, on asexual reproduction, 



428. 

 Groups, aberrant, 419. 

 Grouse, colors of, 74. 



red, a doubtful species, 43. 

 Growth, compensation of, 131. 

 Gunther, Dr., on flat-fish, 208. 



on prehensile tails, 210. 



on the fishes of Panama, 351. 



on the range of fresh-water 

 fishes, 381. 



on the limbs of Lepidosiren, 441. 



Haast, Dr., on glaciers of New 

 Zealand, 371. 



Habit, effect of, under domesti- 

 cation, 10. 

 effect of, under nature, 121. 

 diversified, of same species, 

 155. 



Hackel, Prof., on classification and 

 the lines of descent, 422. 



Hair and teeth, correlated, 129. 



Halitherium, 335. 



Harcourt, Mr. E. V., on the birds 

 of Madeira, 386. 



Hartung, M., on bowlders in the 

 Azores, 364. 



Hazel-nuts, 360. 



Hearne, on habits of bears, 158. 



Heath, changes in vegetation, 62. 



Hector, Dr., on glaciers of New 

 Zealand, 371. 



Heer, Oswald, on ancient culti- 

 vated plants, 15. 

 on plants of Madeira, 92. 



Helianthemum, 194. 



Helix pomatia, 391. 

 resisting salt water, 391. 



Helmholtz, M., on the imperfection 

 of the human eye, 182. 



Helosciadium, 360. 



Hemionus, striped, 145. 



Hensen, Dr., on the eyes of 

 Cephalopods, 169. 



Herbert, W., on struggle for exist- 

 ence, 55. 

 on sterility of hybrids, 263. 



Hermaphrodites crossing, 84, 



