Needle, 20,000 devils dancing a saraband on the point of a, 216 Nest, a bird will alter its nest a little, to meet altered circumstances, 55 Nests, birds', Dr. E. Darwin on, 201 Neuter insects, "the demonstrative case of neuter insects," &c., 249, 298, 314 New countries, Buffon a hater of, 146 Nomenclature, mistaken for knowledge, 141 Nottingham market-place, Erasmus Darwin in, 182, 184, 197 OAK and man, the germs of, indistinguishable, 334 ---- man may become as long-lived as the, 382 Obvious, Erasmus Darwin had no wish to see far beyond the, 197 Oken, alluded to, 72 Old age, the phenomena of, 67, 204, 381 ---- and new worlds, Buffon on the fauna of, 145, &c. One source for all life, Buffon on, 91 ---- Erasmus Darwin on, 109, 233 Oneness of personality between parents and offspring, 37, 38, 39 ---- Buffon on the, 151 ---- Erasmus Darwin and Professor Hering on the, 198-200 ---- Dr. E. Darwin's failure to grasp the whole facts in connection with this, 198, 201, 203 ---- Dr. E. Darwin on, 214, 215 ---- Patrick Matthew on, 322, 323 ---- mentioned, 332, 380, 381 Orang-outang, Buffon on the, 156-159 Organ and use. _See_ "Use." ---- and sense, interaction of the, Buffon on, 127 ---- and faculty, Lamarck on, 255 Organs are living tools, 2 ---- the manufacture of, and that of tools, two species of the same genus, 39, 43, &c. ---- are the expressions of mental phases, 339, 341 Organic structures have a margin, 49, 50 Organic strictures and inorganic, Buffon on the, 153, &c. Organisms, have been developed as man's inventions have, 44, 46, 47, 384 "Origin of Species," the, cannot take permanent rank in the literature of evolution, 62 ---- has no _raison d'etre_, if natural selection is not a cause of variation, 346 ---- a piece of intellectual sleight of hand, 346 ---- compared to the advice of a lawyer who wanted to leave plenty of loopholes, or to a cobbled Act of Parliament, 358 ---- is "Hamlet" with the part of Hamlet cut out, 363 ---- most readers would say that it advocated natural selection as the most important cause of variation, 363 ---- and the "Zoonomia," or the "Philosophie Zoologique"; the one upholds natural selection, the other, sense of need, 363 Orthodoxy, scientific, and mystification, Buffon on, 138 ---- scientific, clamouring for endowment, 360 ---- dangers of, 368 Overseeing tends to oversight, 197 PAINS, genius a supreme capacity for taking, 76 Painting, a man should do _something_, no matter what, 51, 52 Paley, quotations from, 12, &c. ---- his argument a juggle, unless some one designed man, much as man designed the watch, 14, 16 ---- on ordinary mechanism, as showing design, 15 ---- on the human neck, 16, 17 ---- on the patella, 18 ---- on the joints, 19, 20 ---- as a writer against evolution, 21 ---- on the ligament that binds the tendons of the instep, 21, 22