Dogs, fertility of breeds together, | Falconer, Dr., on naturalisation of 228. 399. of crosses, 240. Domestication, variation under, 7. Downs, North and South, 256. Drones killed by other bees, 182. logger-headed, 163. Dugong, affinities of, 373. Eye, structure of, 168. plants in India, 60. 800. on fossil crocodile, 281. and Cautley on mammals of Faunas marine, 813. Fear, instinctive, in birds, 190. from slight changes in con. of crossed varieties, 240. Fish, flying, 164. teleostean, sudden appearance of, 273. eating seeds, 325, 847. 844. Fishes, ganoid, now confined to electric organs of, 173. 288. of southern hemisphere, 337. Flowers, structure of, in relation - of compositæ and umbel. Forbes, E., on colours of shells, on abrupt range of shells in on poorness of palæonto- on continuous succession of on continental extensions, on distribution during glacial on parallelism in time and correction for aberration, 181. Forests, changes in, in America, Eyes reduced in moles, 124. 69. Formation, Devonian, 299. Formations, intermittent, 269. flava, neuter of, 215. Fresh-water productions, dispersal Fries on species in large genera in United States, 77. in United States, 129. Fur, thicker in cold climates, 121. Galapagos Archipelago, birds of, productions of, 358, 360. Game, increase of, checked by on reciprocal crosses, 232. on comparison of hybrids and Geoffroy St. Hilaire on balance- 390. on homologous organs, Isidore, on variability of repeated parts, 135. on correlation in mon- strosities, 11. on correlation, 180. Hermaphrodites crossing, 87. Himalaya, glaciers of, 335. Hippeastrum, 225. Hooker, Dr., on trees of New on acclimatisation of Hima- on flowers of umbelliferæ, on glaciers of Himalaya, 335. on plants of Tierra del Fuego, on Australian plants, 337, on relations of flora of South on flora of the Antarctic on the plants of the Gala- pagos, 352, 357. to seeds on islands, 352. Horns, rudimentary, 408. Icebergs transporting seeds, 326. many, whether simultane- at corresponding ages, 13, 78. sea-side, colours of, 120. Instincts, domestic, 193. Isolation favourable to selection, Japan, productions of, 334. Jones, Mr. J. M., on the birds of Jussieu on classification, 375. Kentucky, caves of, 124. 129. Kidneys of birds, 130. Kirby on tarsi deficient in beetles, Kölreuter on the barberry, 89. on sterility of hybrids, 221. Kölreuter, on crossing male and Lamarck on adaptive characters, of Madeira, naturalised, 862. Lyell, Sir C., on transport of seeds on great alternations of cli. on the distribution of fresh- on land-shells of Madeira, 861. Laurel, nectar secreted by the Macleay on analogical characters, leaves, 83. Laws of variation, 119. Leech, varieties of, 70. Leguminosæ, nectar secreted by glands, 83. Lepidosiren, 97, 296. Lingula, Silurian, 275. Linnæus, aphorism of, 872. Lion, mane of, 80. young of, striped, 395. Lobelia, sterility of crosses, 224. Lowness of structure connected Lubbock, Mr., on the nerves of Lund and Clausen on fossils of on modern changes of the earth, 86. 384. Madeira, plants of, 97. beetles of, wingless, 128. fossil land-shells of, 304. Magpie tame in Norway, 191. Malay Archipelago compared with mammals of, 355, Malpighiaceae, 875. Mammæ, rudimentary, 404. Man, origin of races of, 179. Marsupials of Australia, 105. fossil species of, 304. 323. Matteucci, on the electric organs Matthiola, reciprocal crosses of, 232. Means of dispersal, 320. Mice destroying bees, 68. acclimatisation of, 128. 203. Mirabilis, crosses of, 282. Mistletoe, complex relations of, 3. Mocking thrush of the Galapagos, Modification of species, how far | Noble, Mr., on fertility of Rhodo- applicable, 435. Moles, blind, 124. Mongrels, fertility and sterility and hybrids compared, 244. Mons, Van, on the origin of fruit- Moquin-Tandon on sea-side plants, Morphology, 390. Mozart, musical powers of, 188. Müller, Dr. F., on Alpine Aus- Murchison, Sir R., on the forma. on azoic formations, 275. Mustela vison, 161. Myrmecocystus, 214. Myrmica, eyes of, 216. dendron, 226. Nodules, phosphatic, in zoic on electric organs, 173. on relations of ruminants and on fossil birds of New Zea- on succession of types, 304. on homologous organs, 390. Pacific Ocean, faunas of, 318. Pallas on the fertility of the will Parasites, 196. Partridge, dirt on feet, 326. degrees of utility of 181. |