ence, i. 77. -, on sterility of hybrids, ii. 6. Hildebrand, Prof., on the self-ste- Himalaya, glaciers of, ii. 159. -, plants of, ii. 162. Hippeastrum, ii. 7. Hofineister, Prof., on the move- on acclimatisation of Hima- on flowers of umbelliferæ, i. on the position of ovules, i. 268. Horns, rudimentary, ii. 261. proportions of, when young, ii. 247. striped, i. 199. Huber, on cells of bees, i. 349. P., on reason blended with on habitual nature of instincts, on slave-making ants, i. 336. -, on the Molothrus, i. 334. Hutton, Captain, on crossed geese, Huxley, Prof., on structure of her- -, on the affinities of the Sirenia, -, on forms connecting birds and blind, in caves, i. 171. luminous, i. 236. their resemblance to certain objects, i. 283. -, neuter, i. 359. Instinct, i. 319. not varying simultaneously with structure, 357. Instincts, domestic, i. 325. Kidney-bean, acclimatisation of, i. Kidneys of birds, i. 178. Kirby, on tarsi deficient in beetles, Knight, Andrew, on cause of varia- Kölreuter, on Intercrossing, i. 119. on sterility of hybrids, ii. 3, 4. on crossing male and herma- L. Lamarck, on adaptive characters, ii. 218. eyes of, i. 227. 193. resisting salt water, ii. 187. on homologies, ii. 237. Laurel, nectar secreted by the leaves, Intercrossing, advantages of, i. 149, Laurentian formation, ii. 84. ii. 27. Islands, oceanic. ii. 177. Laws of variation, i. 164. Isolation favourable to selection, i. Leguminosa, nectar secreted by 127. J. Japan, productions of, ii. 158. Jones, Mr. J. M., on the birds of Jourdain, M., on the eye-spots of Jukes, Prof., on subaerial denuda- Jussieu, on classification, ii. 209. K. Kentucky, caves of, i. 172. glands, i. 114. Leibnitz' attack on Newton, ii. 294. limbs in a nascent condition, on the Salamandra atra, ii. 256. young of, striped, ii. 241. Lubbock, Sir J., on the nerves of - on secondary sexual charac- -, on a diving hymenopterous -, on affinities, ii. 73. -, on metamorphoses, ii. 239, 242. Lund and Clausen, on fossils of Lyell, Sir C., on the struggle for -, on modern changes of the on terrestrial animals not hav- -, on a carboniferous land-shell. on strata beneath Silurian sys- on the imperfection of the geo- -, on the appearance of species, -, on Barrande's colonies, ii. 90. on 15. 101. -, on parallelism of tertiary for- on transport of seeds by ice- , on great alterations of climate, on the distribution of fresh- -, on land-shells of Madeira, ii. Lyell and Dawson, on fossilized trees 32. Maurandia, i. 307. Means of dispersal, ii. 140. Metamorphisin of oldest rocks, ii. 85. Miller, Prof., on the cells of bees, i. Mirabilis, crosses of, ii. 15. Mistletoe, complex relations of, i. 3. and hybrids compared, ii. 39. Mons, Van, on the origin of fruit- Monstrosities, i. 51. Moquin-Tandon, on sea-side plants, Naudin, on analogous variations in i. 166. Morphology, ii. 231. Morren, on the leaves of Oxalis, i. Moths, hybrid, ii. 9. Mozart, musical powers of, i. 321. Müller, Adolf, on the instincts of the Müller, Dr. Ferdinand, on Alpine on the lancelet, i. 154. on air-breathing crustaceans, i. 238. on climbing plants, i. 307. on embryology in relation to on the metamorphoses of crus- on terrestrial and fresh-water Murchison, Sir R., on the forma- -, on azoic formations, ii. 84. on extinction, ii. 94. gourds, i. 195. on hybrid gourds, ii. 38. on reversion, ii. 41. Nautilus, Silurian, ii. 83. Nests, variations in, i. 324, 355, 364. Newman, Col., on humble-bees, i. 90. naturalised products of, ii. 119. -, crustaceans of, ii. 164. number of plants of, ii. 178. Newton, Sir I., attacked for irre- Prof., on earth attached to a Nicotiana, crossed varieties of, ii. 39. - 14. Nitsche, Dr., on the Polyzoa, i. 301. Nodules, phosphatic, in azoic rocks, 0. Murie, Dr., on the modification of Oaks, variability of, i. 62. the skull in old age, i. 233. Onites, appelles, i. 168. Ononis, small imperfect flowers of, Palm with hooks, i. 247. 184. on vegetative repetition, i. on variability of unusually on the eyes of fishes, i. 227. on fossil horse of La Plata, ii. on generalized form, ii. 107. on fossil birds of New Zea- -, on succession of types, ii. 121. -, on homologous organs, ii. 233. P. Pacific Ocean, faunas of, ii. 131. Pallas, on the fertility of the domes- Papaper bracteatum, i. 272. i. 89. Partridge, with ball of earth at- Parts greatly developed, variable, i. 185. Parus major, i. 220. Peaches in United States, i. 104. Pelvis of women, i. 178. Period, glacial, ii. 151. , on rate of organic change, ii. 90. on change in latest tertiary -, on close alliance of fossils in Pigeons with feathered feet and skin breeds described, and origin of, i. 23. 47. breeds of, how produced, i. 44, tumbler, not being able to get -, reverting to blue colour, i. 197. Pigs, black, not affected by the modified by want of exercise, Pistil, rudimentary, ii. 256. , selection, applied to, i. 41. |