450 
Myrmecophaga, 307- 
Myrmeleon, 337. 
NAILs, 321. 
Natural selection, inadequacy of, 393, 
397) 401, 407, 410, 413, 415, 421, 423. 
Nature, balance of, 207; definition of, 
169, 345) 375+ 
Neck, elongation of, in birds, 274, 311, 
317; giraffe, 316, 351; ostrich, 317. 
Needs, 245, 270, 274, 281, 295, 302, 324, 
334 346, 350, 351, 352+ 
Neodarwinism, 422. 
Neolamarckism, 2, 382, 396, 398, 422. 
Opuipra, atrophy of legs of, 290, 309. 
Organic sense, 325, 327, 336. 
Organs, changes in, 310; origin of, pre- 
cedes their use, 223; follows their use, 
305, 346; atrophy of, 274, 290, 303, 306, 
307, 309, 311, 315; new production of, 
346, 412, 420. 
Orang-outang, 364. 
Osborn, H. S., 403. 
Ostrich, 317. 
Otter, 312. 
Ox;.315: 
Oyster, 419. 
PALONTOLOGY, 136; invertebrate, 135, 
149. 
Pallas, 137. 
Penchants, 281, 293, 328, 331- 
Perrier, E., 26, 411. 
Petaurista, 338. 
Philosophy, moral, Lamarck’s, 379. 
Phoca vitulina, 338, 344. 
Phylogeny, 130. 
Pigeons, 298 ; fantail, 504. 
Planorbis, 387. 
Plants, changes due to cultivation, etc., 
251, 267, 274, 283, 296, 297; Cultivated, 
298. 
Population, over-, checks on, 287, 238. 
Preformation, 162, 218, 222. 
Propensities, 293, 328, 
351. 
Proteus, 308. 
Pteromys, 339. 
281, 
335, 3495 
INDEX. 
RANUNCULUS AQUATILIS, 251, 300. 
Religion and science, 372. 
Reptiles, 342. 
Revolutions of the earth, 109, 142. 
Rousseau, J. J., 17, 18. 
Roux, W.., 421. 
Ruminants, 315. 
Ryder, J. A., 403. 
SCIENCE AND RELIGION, 372- 
Sciurus volans, 338. 
Scott, W. B., 403. 
Sea, former existence of, 109, 110, 148. 
Seal, 338, 344. 
Segments, origin of, 421. 
Segregation, in man, 320, 369. 
Selection, mechanical, 410. 
Semper, C., 406. 
Series, animal, branching, 235, 264, 282. 
Serpents, origin of, 290, 309; eyes of, 
314. 
Sexual selection, 219, 224. 
Shell, bivalve, origin of, 418 ; crustacean, 
418. 
Shells, deep-water, 112; fossil, 40, 110, 
125, 131; Lamarckian genera, 183. 
Simia satyrus, 367 ; troglodytes, 364. 
Sloth, 320. 
Snakes, atrophy of legs of, 290, 309 ; eyes 
of, 314; origin of, 290, 309; tongue of, 
313. 
Sole, 314. 
Species, Buffon’s views on, 201, 211; 
definition of, 252, 255, 262, 267, 275; ex- 
tinct, 126; Geoffroy St. Hilaire, views 
on, 214; Lamarck’s views on, 
modification of, 131; origin of, 131, 283; 
stability of, 271, 277, 401; variation in, 
mSgie 
278. 
Speech, 370. 
Spencer, Herbert, 371, 382, 384, 415. 
Spermist, 218. 
Sphalax, 307. 
Spines, 251, 393, 414. 
Sponges, 194. 
Squirrel, flying, 338, 339. 
Stimulus, external, 348, 354, 393. 
Struggle for existence, 207, 237, 287. 
Surroundings, 214, 421 ; local, 410. 
