Experience and instinct, Mr. Patrick Matthew on, 322 Extinct species, Lamarck on, 277 ---- Buffon on, 146, 277 Eye, no creature that had nothing like an eye ever set itself to conceive one and grow one, 44, 387 ---- Paley asks "how will our philosopher get an eye?" 46 ---- of flat fish, Lamarck on the, 307 ---- Lamarck on the, of underground and cave-inhabiting animals, 378 ---- disappear and reappear in the scale of organism according to the power of using them, 379 FAITH, forms of, or faiths of form, &c., 339 Familiarity, with a little, such superficial objections will be forgotten, 367 Far ahead, no organism ever saw an improvement a long way off and made towards it, 43, 44, 48, 49, 54, 384 Father, the man who could be father of such a son and retain his affection, &c., 76 Factors, there have been two, of modification, one producing and the other accumulating variations, 227 Fecundity, alternate years of, Buffon on, 125 Feeding and breeding, 222 Feel, if plants and animals look as if they feel, let us say they feel, 198 Feeling, there is more feeling than reason in animals, 51 Feral characteristics, resumption of, Buffon on, 123 Final causes, the doctrine of, as commonly held in the time of the early evolutionists, 34, 36 ---- Buffon on, 118, &c. Fitness, the cause of, more important than the fact that fitness is commonly fit, and therefore successful, 351 Flat fish, Lamarck on the eyes of, 307 Fluctuation of opinion, C. Darwin on Buffon's, the charge refuted, 97, &c., 164, 166 Fontenelle, on theories, 22 Foot, and model of foot, differences between, 24 Forms of faith, or faiths of form, &c., 339 Four main points which the early evolutionists failed to see in their connection and bearing on each other, 37, 203 Four main principles, the, which I contended for in "Life and Habit," 37, 203, 380, 381 Fowls and pigeons, Buffon on, 169 GARNETT, Mr. R., and "Darwinising," 21 Genius, Mr. Allen says I am a, 388 Gentleman, the Church of Rome means the same by the word as we do, 395 Geoffroy, Etienne, how small a way he goes, 196 ---- and Isidore, trimmers, 328 ---- on Buffon, 328 ---- on conditions of existence, 326, 327 ---- declares against Lamarck's hypothesis, 328 ---- his position, 325-328 Geoffroy, Isidore, on evolution and final causes, 9 ---- on Buffon's fluctuation of opinion, 98, &c., 164, 166 ---- points out the difference between the views of Buffon and Lamarck, 105 ---- statement that Buffon's opinions fluctuated again refuted, 166 ---- and Lamarck's hypothesis, 244-246, 329 ---- on Buffon, 328 ---- his position, 329 Genealogical order, Lamarck on, 264 ---- C. Darwin on, 265 Generation more remarkable than reason, Hume on, 233 Generic differences (as well as specific), Buffon on, 164 Genius, a supreme capacity for taking pains, 76 Geographical distribution, changed, Buffon on, 145, &c., 164 Geometrical ratio of increase, Buffon on, 123 ---- Lamarck, on, 280