448 



HELIANTIIEMUM. 



Game, increase of, checked by ver- 



miD, 55. 

 Gartner, on steiility of hybrids, 2o7, 



241. 



, on reciprocal crosses, 243. 



, on crossed maize and verbas- 



cum, 257, 258. 



, on comparison of hybrids and 



mongrels, 259, 260. 

 Gaudry, Prof., on intermediate genera 



of fossil mammals in Attica, 3-01. 

 Geese, fertility when crossed, 397. 



, upland, 142. 



Geikie, Mr., on subaerial denudation, 



267. 

 Genealogy, important in classifica- 



cation, 369. 

 Generations, alternate, 387. 

 Geoffroy St. Hilaire, on balancement, 



117. 



, on homologous organs, 382. 



, Isidore, on variability of re- 

 peated parts, 118. 

 , on correlation, in monstrosi- 

 ties, 9. 



, on correlation, 115. 



, on variable parts being often 



monstrous, 122. 

 Geographical distribution, 316. 

 Geography, ancient, 427. 

 Geology, future progress of, 427. 

 , imperfection of the record, 



427. 

 Gervais, Prof., on Typotheriurn, 302. 

 Giraffe, tail of, 157. 



, structure of, 177. 



Glacial period, 330. 



, affecting the North and South, 



335. 

 Glands, mammary, 189. 

 Gmelin, on distribution, 330. 

 Godwin-Austen, Mr., on the Malay 



Archipelago, 280. 

 Goethe, on compensation of growth, 



117. 

 Gomphia, 174. 

 Gooseberry, grafts of, 246. 

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



353. 



, Mr., on colours of birds, 107. 



, on instincts of cuckoo, 214. 



, on distribution of genera of 



birds, 358. 

 Gourds, crossed, 258. 



Graba, on the Uria lacrymans, 72. 



Grafting, capacity of, 245, 246. 



Granite, areas of denuded, 274. 



Grasses, varieties of, 88. 



Gray, Dr. Asa, on the variability of 

 oaks, 40. 



, on man not causing varia- 

 bility, 62. 



, on sexes of the holly, 74. 



, on trees of the United States, 



79. 



, on "naturalised plants in the 



United States, 89. 



, on aestivation, 174. 



■ , on Alpine plants, 330. 



, on rarity of intermediate va- 

 rieties, 136. 



, Dr. J. E., on striped mule, 128. 



Grebe, 142. 



Grimm, on asexual reproduction, 387. 



Groups, aberrant, 378. 



Grouse, colours of, 66. 



, red, a doubtful species, 38. 



Growth, compensation of, 117. 



Gunther, Dr., on flat-fish, 187. 



, on prehensile tails, 189. 



, on the fishes of Panama, 317. 



, on the range of fresh-water 



fishes, 343. 



, on the limbs of Lepidosiren, 



399. 



Haast, Dr., on glaciers of New Zea- 

 land, 335. 



Habit, effect of, under domestica- 

 tion, 8. 



, effect of, under nature, 108. 



, diversified, of same species, 141. 



Haekel, Prof., on classification and 

 the lines of descent, 381. 



Hair and teeth, correlated, 115. 



Halitherium, 302. 



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

 Madeira, 348. 



Hartung, M., on boulders in the 

 Azores, 328. 



Hazel-nuts, 325. 



Hearne, on habits of bears, 141. 



Heath, changes in vegetation, 55. 



Heer, Oswald, on ancient cultivated 

 plants, 13. 



, on plants of Madeira, 83. 



Helianthemum, 174. 



