INDEX. 
495 
FUCI. 
Fuci, crossed, 258. 
Fur, thicker in cold climates, 133. 
Furze, 439. 
G. 
Galapagos Archipelago, birds of, 390. 
-, productions of, 398, 400. 
Galeopithecus, 181. 
Game, increase of, checked by vermin, 
68 . 
Gartner on sterility of hybrids, 247, 
255. 
-, on reciprocal crosses, 258. 
-, on crossed maize and verbascum, 
270. 
-, on comparison of hybrids and 
mongrels, 272. 
Geese, fertility when crossed, 253. 
-, upland, 185. 
Genealogy important in classification, 
425. 
Geolfroy St. Hilaire on balancement, 
147. 
—-on homologous organs, 434. 
->, Isidore, on variability of re¬ 
peated parts, 149. 
-, on correlation in monstrosi¬ 
ties, 11. 
-, on correlation, 144. 
-, on variable parts being often 
monstrous, 155. 
Geographical distribution, 346. 
Geography, ancient, 487. 
Geology, future progress of, 487. 
--, imperfection of the record, 279. 
Giraffe, tail of, 195. 
Glacial period, 365. 
Gmelin on distribution, 365. 
Gnathodon, fossil, 368. 
God win-Austen, Mr., on the Malay 
Archipelago, 300. 
Goethe on compensation of growth, 
147. 
Gooseberry, grafts of, 262. 
Gould, Dr. A., on land-shells, 397. 
-, Mr., on colours of birds, 132. 
-, on birds of the Galapagos, 398. 
-, on distribution of genera of birds, 
404. 
Gourds, crossed, 270. 
Grafts, capacity of, 261. 
Grasses, varieties of, 113, 
HOOKER. 
Gray, Dr. Asa, on trees of United 
States, 100. 
--, on naturalised plants in the 
United States, 115. 
-•, on rarity of intermediate varie¬ 
ties, 176. 
■-, on Alpine plants, 365. 
-, Dr. J. E., on striped mule, 165. 
Grebe, 185. 
Groups, aberrant, 429. 
Grouse, colours of, 84. 
—-, red, a doubtful species, 49. 
Growth, compensation of, 147. 
-, correlation of, in domestic pro¬ 
ducts, 11. 
-, correlation of, 143. 
H. 
Habit, effect of, under domestication, 
11 . 
-, effect of, under nature, 134. 
-, diversified, of same species, 183. 
Hair and teeth, correlated, 144. 
Harcourt, Mr. E. V., on the birds of 
Madeira, 391. 
Hartung, M. on boulders in the Azores, 
363. 
Hazel-nuts, 359. 
Hearne on habits of bears, 184. 
Heath, changes in vegetation, 72. 
Heer, 0., on plants of Madeira, 107. 
Helix pomatia, 397. 
Helosciadium, 359. 
Hemionus, striped, 163. 
Herbert, W., on struggle for exist¬ 
ence, 62. 
-, on sterility of hybrids, 249. 
Hermaphrodites crossing, 96. 
Heron eating seed, 387. 
Heron, Sir R., on peacocks, 89. 
Heusinger on white animals not poisoned 
by certain plants, 12. 
Hewitt, Mr., on sterility of first crosses, 
264. 
Himalaya, glaciers of, 373. 
--, plants of, 375. 
Hippeastrum, 250. 
Holly-trees, sexes of, 93. 
Hollyhock, varieties of, crossed, 271, 
Flooker, Dr., on trees of New Zealand, 
100 . 
