Mystification, scientific, and orthodoxy, Buffon on, 138 NAIVELY, as Mr. Darwin naively adds, "_sometimes_ equally convenient," 354 Natural selection, the essence of the theory is that the variations shall have been mainly accidental, 7 Natural selection, the unerring skill of, 9 ---- Sir William Thomson and Sir John Herschel on, 10 ---- Button, and, "by _some chance_ common enough with Nature," 122 ---- spoken of as though synonymous with descent with modification, 248, 285, 356 ---- C. Darwin attributes the instincts of neuter insects to, 249 ---- Mr. Patrick Matthew and, 323 ---- like the secretion of a cuttle-fish, 332 ---- G. H. Lewes's objection to C. Darwin's language concerning, 346 ---- if this is declared to be a cause, the fact of variation is declared to be the cause of variation, 347 ---- declared by C. Darwin to be a means of variation, 347 ---- treated as a cause, 348 ---- G. H. Lewes on, 348, 349, 350 ---- identity with "conditions of existence," 351-354 ---- according to C. Darwin, "fully embraces" and yet "is included in" conditions of existence, 355 ---- a cloak for want of precision of thought, and of substantial difference from Lamarck, 358 ---- "some have even imagined that it induces variability;" and small wonder, considering C. Darwin's language concerning it, 362 ---- C. Darwin's reply to those who have objected to the term, 362-368 ---- a cloak of difference from C. Darwin's predecessors, under which there lurks a concealed identity of opinion as to main facts, 362, 363 ---- "implies only the preservation of such variations as arise," &c., 363 ---- admitted by C. Darwin to be a false term, 364 ---- the complaint is that the expression has been retained when an avowedly more accurate one is to hand, 365, 366 ---- only another way of saying Nature, 368, 369 ---- the dislike of it is increasing, 368, 369 ---- Francis Darwin does not use the expression, 368, 369 ---- daily and hourly scrutinizing throughout the world, &c., 369 ---- practically repudiated by C. Darwin himself, 369 ---- Professor Mivart declares it to be "simply nothing," 370 ---- a "puerile hypothesis," 371 ---- and not disuse, the true main cause of the winglessness of Madeira beetles, according to C. Darwin, 374 ---- _not_ the main cause of the winglessness of Madeira beetles, according to C. Darwin, 377 ---- "combined probably with disuse," will account, according to C. Darwin, for the winglessness of Madeira beetles, 375 _Naturalistes_, _le peuple des_, 80, 171 Nature, the personification of comparatively venial, 367 ---- and natural selection the same thing, 368, 369 ---- the most important means of modification, and variation the cause of variation, 369 Neck, Paley on the human, 17, 18 Need, sense of, the main idea in connection with evolution that is left with the reader by the "Zoonomia," or "Philosophie Zoologique," 363