Aldrovandus, Buffon on the learned, 93 Alive, when we must not say that an animal is alive (to be retracted), 279 Allen, Grant, on 'Evolution, Old and New,' 386-388 ---- on the decay of criticism, 388 ---- calls Evolutionism "an almost exclusively English impulse," 393 Alternations of fat and lean years, Buffon on, 125 Amoeba, the, did not conceive the idea of an eye and work towards it, 43, 44, 384 Analogies, false, all words are apt to turn out to be, 365 Animals, contracts among, Dr. E. Darwin on, 205 Ape, the, and man, 90 Apes and monkeys, Buffon on, 153 ---- and children fall on all-fours at the approach of danger, 312 Apparentibus, _de non_, _et non existentibus, &c._, 36 Appearances, rather superficial, our only guide to classification, 34, 35, 36, 198, 204 Appetency, Paley's argument against the view that structures have been developed through, 22, 45 Aristides, C. Darwin as just as, 363 Aristotle denied teleology, 4 Artificial and real foot, differences between, 25 Asceticism, virtue errs on the side of excess rather than on that of, 35 Ass, the, and horse, Buffon's pregnant passage on their relationship, 80, 90, 91, 100, 101, 142, 143, 155, 164, 311 Authority, a hard thing to weigh, 253 BACON, F., on evolution, 69 Balzac, quotation from, on memory and instinct, 67 Bark, Erasmus Darwin's theory of, 208 Beaver, trowel incorporated into the beaver's organism, 8 Bees, neutralization of working, an act of abortion, 250 Beetles, Madeira, Lamarck and C. Darwin's views of their winglessness compared, 373, 380 Begin, How could the eye _begin_? 46, 47 Beginnings, of complex structures, a difficulty in the way of natural selection, 21, 22 ---- difficulty of accounting for, 46, 47 ---- a matter of conjecture and inference, 48 Behind, more moral to be behind the age than in front of it, 401 Best, making the best of whatever power one has, 50 Bird, how birds became web-footed, 48, 49, 51 ---- a, will modify its nest a little, under altered circumstances, 55 ---- Buffon on, 170, &c. ---- nests, Dr. Erasmus Darwin's failure to connect the power to make them with memory, 201, 203 ---- aquatic and wading, Lamarck on, 305 Bishop, and Eveque, common derivation of, 355 Blindfolded, we are so far, that we can see a few steps in front, but no more, 44 ---- us, C. Darwin has almost ostentatiously, 346 Blindly, forces interacting blindly, 59 Body and mind, Lamarck on, 338, 339, 341 Brain, Lamarck had brain upon the brain, 36 ---- Buffon on the, 131, 133, &c. Brevity may be the soul of wit, but, &c., 315 Breeding, and feeding, 222 Brown-Sequard, his experiments on guinea-pigs' legs, 303 Buds, individuality of, Dr. Erasmus Darwin on the, 207, 208 Buffalo, Buffon on the, 148, &c. Buffon, profoundly superficial, 34 ---- _plus il a su, plus il a pu, &c._, 44 ---- _dans l'animal il y a moins de jugement que de sentiment_, 51 ---- ignorance concerning, 61 ---- memoir of, 74, &c.