OCR Text |
Show 4-30 INDEX. Nests, variation in, 189. N outer insects, 209. Newman Mr., on humble-bees, '72. New Zealand, productions of, not perfect, 180. naturalised products of, 294. fossil birds of, 296. glacial action in, 325. crustaceans of, 3213. algoo of, 328. number of plants of, 339. flora of, 347. Nicotiana, crossed varieties of, 239. certain species very .sterile, 227. Noble, Mr., on fertility of H.hododendron, 222. Nodules, phosphatic, in azoic rocks, 269. Oak, varieties of, 51. Onites apelles, 123. Orchis, pollen of, 173. Organs of extreme perfection, 167. electric, of fishes, 172. of little importance, 174. homologous, 377. rudiments of, 391. Ornithorhynchus, 100, 362. Ostrich not capable of flight, 123. habit of laying eggs together, 194. American, two. species of, 305. Otter, habits of, how acquired, 161. Ouzel, water, 166. Owen, Prof., on birds not :flying, 123. · on vegetative repetition, 135. on variable length of arms in ourang-outang, 136. on the swim-bladder of fishes, 171. on electric organs 172. on fossil horse of La Plata, 279. on relations of ruminants and pachy-derms, 288. on fossil birds of New Zealand, 296. on succession of types, 296. on affinities of the dugong, 361. on homologous organs, 378. on the metamorphosis of cephalopods and spiders, 384. Pacific Ocean, faunas of, 304. Paley on no organ formed to give pain, 179. Pallas on the fertility of the wild stocks of domestic animals, 224. Paraguay, cattle destroyed by flies, '11. Parasites, 194. Partridge, dirt on feet, 316. Parts greatly developed, variable, 136. degrees of utility of, 179. Par us major, 164. Passiflora, 221. Peaches in United States, 81. Pear, grafts of 231. Pelargonium, flowers of, 132. sterility of, 222. Pelvis of women, 131. Peloria, 132. Period, glacial, 318. Petrels, habits of, 165. Phasianus, fertility of hybrids, 224. Phea&ant, young, wUd1 192. Philippi on tertiary species in Sicily, 273. Pictet, Prof., on groups of species sudden. ly appearing, 264, 267. on rate of organic change, 274. on continuous succession of genera, 277. on close alliance of fossils in consecutive formations, 293. on embryological succession, 295. Pierce, Mr. on varieties of wolves, 87. Pigeons with feathered feet and skin be-tween toes, 18. breeds dcscl'ibod, and origin of, 25. lrreeds of, how J?roduced, 41, 44. tumbler, not bemg able to get out of egg, 83. reverting to blue color, 144. instinct of tumbling, 191. carriers, killed by hawks, 315. young of, 387. Pistil, rudimentary, 392. Plants, poisonous, not affecting certain coloured animals, 18. selection applied to, 36. gradual improvement of, 40. not improved in barbarous countries, 40. destroyed by insects, 66. in midst of range, have to struggle with other plants, 75. nectar of, 87. fleshy, on sea-shores, 121. fresh-water, distribution of, 336. low in scale, widely distrihuted, 353. Plumage, laws of change in sexes of birds, 85. Plums in the United States, 81. Pointer dog, origin of, 38. habits of, 190. Poison not afl'ecting certain co.oured animals, 18. Poison, similar effect of, on animals and plants, 419. Pollen of :fir-trees, 181. Poole, Col., on striped hemionus, 147. Potamogeton, 337. Prestwich, Mr., on English and French eocene formations, 287. Primrose, 51. sterility of, 219. Primula, varieties of, 51. Proteolepas, 134. Proteus, 127. Psychology, future progress of,423. Quagga, striped, 149. Quince, grafts of, 231. Rabbit, disposition of young, 192. Races, domestic, characters of, 21. Race-horses, Arab, 38. English, 310. Ramoud on plantfi of Pyrenees, 320. Ramsay, Prof., on thickness of the British formations. 249. on faults, 250. Ratio of increase, 63. Rats, sup,;>lanting each other, 74. acchmatisation of, 128. blind in cave, 126. INDEX. 431 Rattle-snake, 179. Reason and instinct, 186. Recapitulation, general, 398. Reciprocity of crosses, 228. Record, geological, imperfect, 245. Rengger on flies destroying cattle, 70. Reproduction, rate of, 63. Resemblance to parents in mongre.s and hybrids, 241. Reversion, law of inheritance, 20. in pigeons to blue colour, 144. Rhododendron, sterility of, 222. Richard, Prof., on Aspicarpa, 363. Richardson, Sir J., on structure of squir-rels, 162. on fishes of the southern hemisphere, 327. Robinia, grafts of, 231. Rodents, blind, 125. Rudimentary organs, 391. Rudiments important for classification, 362. Sageret on grafts, 231. Salmons, males fighting, and hooked jaws of, 84. Salt water, how far injurious to seeds, 312. Saurophagus sulphuratus, 164. SchiOdte on blind insects, 126. Schlegel on snakes, 131. Sea-water, how far injurious to seeds, 812. Sebright, Sir J., on crossed animals, 25. on selection of pigeons, 34. Sedgwick, Prof., on groups of species suddenly appearing, 264. Seedlings destroyed by insects, 66 Seeds, nutriment in, 75. winged, 133. power of resisting salt water t 312. in crops and intestines of biras, 315. eaten by fish, 316, 337. in mud, 337. hooked, on islands, 341. Selection of domestic products, 33. principle not of recent origin, 36. unconscious, 37. natural, 77. sexual, 83. natural, circumstances favouuble to, 95. Sexes, relations of, 83. Sexual characters variable, 141. selection, 83. Sheep, Merino their selection, 35. two sub-breeds unintentionally produced, 39. mountain, varieties of, 73. Shells colours of 121. littoral, seldom embedded, 253. fresh-water, dispersal of, 335. of Madeira, 341. land, distribution of, 346. Silane, fertility of crosses,227. Silliman, Prof., on blind rat, 125. Skulls of young mammals, 176, 380. Slave-making instinct, 195. Smith, Col. Hamilton, on striped horses, 148. Mr. Fred., on slave-making ants, 196. Smith..l_Mr. Fred.J on neuter ante, 212. .M.r., of Joraan Hill, on the degradation of coast-rocks, 248. Snap-dragon 145. Somerville, tord, on selection of sheep, 34. Sorbus, grafts of, 231. Spaniel, King Charles's breed, 38. Species, polymorphic, 48. common, variable, 54. in large genera variable, 55. groups of, suddenly appearing, 264, 268. beneath Silurian formations, 268. successively appearing, 273. changing simultaneously throughout the world, 282. Spencer, Lord, on increase in size of cattle, 38. Sphex, parasitic, 195. Spiders, development of, 384. Spitz-dog crossed with fox, 236. Sports in plants, 16. Sprengle, C. C., on crossing, 92. on ray-florets, 132. Squirrels, gradations in structure, 162. Staffordshire, heath, changes in, 70. Stag-beetles, fighting, 84. Sterility from changed conditions of life, 16. of hybrids, 218. laws of, 225. causes of, 232. from unfavourable conditions, 234. of certain varieties, 237. St. Helena, productions of, 339. St. Hilaire, Aug., on classification, 364. St. John, Mr., on habits of cats, 86. Sting of bee, 180. Stocks, aboriginal, of domestic animals, 23. Strata, thickness of, in Britain, 249. Stripes on horses, 147. Structure1 degrees of utility of, 179. Struggle tor existence, 60. Succession, geological, 273. Succession of types in same areas, 295. Swallow, one species supplanting another, '14. Swim-bladder, 170. System, natural, 360. Tail of giraffe, 174. of aquatic animals, 175. rudimentary, 394. Tarsi deficient, 123. Tausch on umbelliferous flowers, 132. 'l'eeth and hair correlated 131. embryonic, traces of, in birds, 391. rudimentary, in embryonic calf,391, 416. Tegetmeier, Mr., on cells of bees, 202, 207. Temminck on distribution aiding classification, 365. Thouin on grafts, 231. Thrush, aquatic species of, 166. mocking, of the Galapagos, 350. young of, spotted, 382. nest of, 215. · Thurot, M., on crossed fusi 228. Thwaites1 Mr., on ac~;limatlsation, 128. |