INDE X 
ADAPTATION, 322, 367, 392, 412. 
/Erobates, 338. 
Ai, 320. 
Amphibia, 342. 
Ant-eater, 307, 313. 
Antlers, origin of, 316. 
Ant-lion, 337. 
Appetence, doctrine of, 219, 234, 236, 350, 
412. 
Aspalax, 307. 
Atrophy, 274, 290, 303, 306, 307, 309, 311, 
315, 343: 
Audouin, J. V., 63. 
Barus, C., estimate of Lamarck’s work 
in physics, 85. 
Batrachia, 342. 
Battle, law of, 219, 224. 
Beaver, 312. 
Besoins, 245, 270, 274, 281, 295, 302, 324, 
3341 346, 350, 352, 412. 
Bird, humming, 313. 
Birds, domestic, atrophy in, 274; origin 
of, 342; origin of swimming, 234, 311; 
perching, 234, 312; shore, 234, 312. 
Blainville, H. D. de, 62, 64, 135. 
Blumenbach, 138. 
Bolton, H. C., 86. 
Bonnet, C., ideas on evolution, 156; 
germs, 163. 
Bose, £; A:G:;, 52: 
Bourguin, L. B., 30, 31. 
Bradypus tridactylus, 320. 
Brain, 337, 360; human, 358. 
Bruguiére, J. G., 38, 113. 
Buffalo, 315. 
Buffon, G. L. L., 19,92, 198; factors of evo- 
lution, 205, 356; views on descent, zor. 
Bulla, 348. Pan 
CALLosITIES, origin of, 203. 
Camelo-pardalis, 316, 351. 
Carnivora, 317; origin of, 343. 
Catastrophism, 3105, 117, 126, 146, 153; 
anti-, 105, 114, 153. 
Cave life, 390, 392. 
Cetacea, 343, 409; rudimentary teeth of, 
307. 
Chain of being, 167, 181, 191, 208, 235, 
241, 242. 
Changes in environment, 302; local, 301; 
slow, 301. 
Characters, acquired, heredity of, 219, 
224, 246, 276, 303, 319. 
Chimpanzee, 367. 
Chiton, 348. 
Circumstances, influence of, 246, 247, 292, 
294, 302, 305, 320, 323, 363, 400. 
Clam, origin of siphon of, 353, 418. 
Classifications, artificial, 282. 
Claws of birds, 312; Carnivora, 317, 
414. 
Climate, 204, 218, 244, 283, 400, 402, 416. 
Coal, origin of, 113, 122. 
Colonies, animal, 411. 
Colors, animal, 221. 
Competition, 236, 287. 
Conditions, changes of, 292, 294, 302, 305, 
310, 400, 407, 414. 
Consciousness, 325, 326, 353- 
Cope, E. D., 383, 389. 
Corals, 115. 
Correlation, law of, 136, 142, 145; of ter- 
tiary beds, 133. 
Costantin, 416. 
Creation by evolution, 130. 
Crossing, swamping effects 
320. 
Crustacea, origin of, 341. 
of, 246, 
