L.

Lamarck on adaptive characters, 426. Land-shells, distribution of, 397. ---- of Madeira, naturalised, 403. Languages, classification of, 422. Lapse, great, of time, 282. {497} Larvæ, 440. Laurel, nectar secreted by the leaves, Laws of variation, 131. Leech, varieties of, 76. Leguminosæ, nectar secreted by glands, 92. Lepidosiren, 107, 330. Life, struggle for, 60. Lingula, Silurian, 307. Linnæus, aphorism of, 413. Lion, mane of, 88. ----, young of, striped, 439. Lobelia fulgens, 73, 98. Lobelia, sterility of crosses, 250. Loess of the Rhine, 384. Lowness of structure connected with variability, 149. Lowness, related to wide distribution, 406. Lubbock, Mr., on the nerves of coccus, 46. Lucas, Dr. P., on inheritance, 12. ----, on resemblance of child to parent, 275. Lund and Clausen on fossils of Brazil, 339. Lyell, Sir C, on the struggle for existence, 62. ----, on modern changes of the earth, 95. ----, on measure of denudation, 284. ----, on a carboniferous land-shell, 289. ----, on strata beneath Silurian system, 308. ----, on the imperfection of the geological record, 311. ----, on the appearance of species, 312. ----, on Barrande's colonies, 313. ----, on tertiary formations of Europe and North America, 323. ----, on parallelism of tertiary formations, 328. ----, on transport of seeds by icebergs, 363. ----, on great alternations of climate, 382. ----, on the distribution of fresh-water shells, 385. ----, on land-shells of Madeira, 402. Lyell and Dawson on fossilized trees in Nova Scotia, 297.