546 



INDEX 



Instinct, 262. 



'. , not varying simultaneously 



with structure, 290. 

 Instincts, domestic, 267. 

 Intercrossing, advantages of, no, 



318. 

 Islands, oceanic, 431. 

 Isolation favourable to selection, 



116. 



J 



Japan, productions of, 417. 



Java, plants of, 420. 



Jones, Mr. J. M., on the birds of 



Bermuda, 433. 

 Jourdain, M., on the eye-spots of 



star-fishes, 191. 

 Jukes, Prof., on subaerial denuda- 



tion, 336. _ 



Jussieu, on classification, 455. 



K 



Kentucky, caves of, 150. 



Kerguelen-land, flora of, 425, 441. 



Kidney-bean, acclimatisation of, 153. 



Kidneys of birds, 156. 



Kirby, on tarsi deficient in beetles, 

 148. 



Knight, Andrew, on cause of varia- 

 tion, 25. 



Kolreuter, on Intercrossing, 109. 



• , on the barberry, in. 



; on sterility of hybrids, 299, 



300. 



, on reciprocal crosses, 308. 



- — —, on crossed varieties of nico- 

 tiana, 326. 



on crossing male and her- 



maphrodite flowers, 490. 



Lamarck, on adaptive characters, 

 462. 



Lancelet, 137. 



, eyes of, 193. 



Landois, on_ the development of the 

 wings of insects, ig6. 



Land-shells, distribution of, 438. 



■ , of Madeira, naturalised, 443. 



, resisting salt water, 439. 



Languages, classification of, 459. 



Lankester, Mr. E. Ray, on Longev- 

 ity, 229. 



, on homologies, 477. 



Lapse, great, of time, 335. 



Larvx, 480. 



Laurel, nectar secreted by the 

 leaves, 106. 



Laurentian formation, 360. 



Laws of variation, 145. 



Leech, varieties of, 89. 



Leguminosae, nectar secreted by 

 glands, 106. 



Leibnitz' attack on Newton, 520. 



Lepidosiren, 118, 380. 



Lepidosiren, limbs in a nascent con- 

 dition, 492. 



Lewes, Mr. G. H., on species not 

 having changed in Egypt, 220. 



, on the Salamandra atra, 4pi. 



-, on many forms of life having 



been at first evolved, 524. 



Life, struggle for, 78. 



Lingula, Silurian, 359. 



Linnasus, aphorism of, 452. 



Lion, mane of, 102. 



, young of, striped, 480. 



Lobelia fulgens, 87, 111. 



, sterility of crosses, 302. 



Lockwood, Mr., on the ova of the 

 Hippocampus, 244. 



Locusts transporting seeds, 408. 



Logan, Sir W., on Laurentian for- 

 mation, 360. 



Lowe, Rev. R. T., on locusts visit- 

 ing Madeira, 408. 



Lowness of structure connected with 

 variability, 160. 



; related to wide distribution, 



446. 



Lubbock, Sir J., on the nerves of 

 coccus, 60. 



, on secondary sexual charac- 

 ters, 167. 



on a diving hymenopterous 



insect, 189. 

 - — , on aftinities, 352. 



-, on metamorphoses, 480. 



Lucas, Dr. P., on inheritance, 30. 

 — , on resemblance of child to 



parent, 329. 

 Lund and Clausen, on fossils of 



Brazil. 38S. 

 Lyell, Sir C., on the struggle for 



existence, 77. 

 , on modern changes of the 



earth, 109. 



Sir C., on terrestrial animals 



not having been developed on 

 islands, 233. 



on a carboniferous land-shell, 



341. 



on strata beneath Silurian 

 system, 360. 



on the imperfection of the geo- 



logical record, 363. 

 -, on the appearance of species, 



363. 



-, on Barrande's colonies, 364. 



, on tertiary formations of 



Europe and North America, 373. 



-, on parallelism of tertiary for- 



mations, 377. 

 , on transport of seeds by ice- 

 bergs, 410. 

 -, on great alterations of climate. 



426. 



, on the distribution of fresh- 

 water shells, 429. 

 -, on land-shells of Madeira, 443. 



Lyell and Dawson, on fossilized 



trees in Nova Scotia, 349. 

 Ly thrum salicaria, trimorphic, 321. 



