[28] _Life_, vol. II, p. 238. [29] _More Letters_, vol. II, p. 105. [30] _Life_, vol. I, p. 40. [31] _Different Forms of Flowers_, p. 189. [32] To Wiesner, October 4, 1881, _More Letters_, vol. II, p. 432. [33] _Life_, vol. I, p. 124. [34] _Ibid._ [35] _Life_, vol. I, p. 125. [36] _Life_, vol. II, p. 453. [37] _Cirripedia_, p. 155. [38] To Lyell, September 12, 1860, _Life_, vol. II, p. 133. [39] _Darwiniana_, p. 275. [40] To Hooker, February 4, 1861, _Life_, vol. II, p. 153. [41] To Lyell, March 9, 1850, _More Letters_, vol. II, p. 229. [42] _Life_, vol. I, p. 125. [43] _Life_, vol. I, p. 105. [44] _Life_, vol. I, p. 80. [45] _Life_, vol. I, p. 121. [46] _Purgatorio_, canto III. [47] To Miss S. Darwin, August 4, 1836, _Life_, vol. I, p. 237. [48] To Hooker, 1847, _Life_, vol. I, p. 317. [49] _More Letters_, vol. I, p. 3. [50] To Miss C. Darwin, November 8, 1834, _Life_, vol. I, p. 230. [51] _Beagle Journal_, p. 78. [52] _Life_, vol. I, p. 109. [53] _Expression_, p. 194. [54] To Romanes, May 29, 1876, _More Letters_, vol. I, p. 364. [55] To Fox, May, 1832, _Life_, vol. I, p. 206. [56] To Henslow, May 18, 1832, _Life_, vol. I, p. 208. [57] To Henslow, August 15, 1832, _More Letters_, vol. I, p. 9. [58] _Journal_, August 29, 1858, vol. XI, p. 137. [59] _Journal_, December 4, 1856, vol. IX, p. 158. [60] _Life_, vol. I, p. 368. [61] _Worms_, p. 97. [62] _Origin_, p. 105. [63] In _Popular Science Monthly_, April, 1909, vol. LXXIV, p. 198. CHAPTER II: THE THINKER [64] To Bates, November 22, 1860, _More Letters_, vol. I, p. 176. [65] To Fawcett, September 18, 1861, _More Letters_, vol. I, p. 195. [66] _More Letters_, vol. I, p. 93. [67] _Life_, vol. I, p. 40. [68] Answer to questionnaire, _Life_, vol. II, p. 355. [69] _Life of Huxley_, vol. I, p. 521. [70] To Wallace, August 28, 1872, _Life_, vol. II, p. 346. [71] To Balfour, September 4, 1880, _More Letters_, vol. II, p. 424. [72] _Beagle Journal_, p. 378. [73] To Wallace, December 22, 1857, _Life_, vol. I, p. 465. [74] _Journal_, March 23, 1853, vol. V, p. 45. [75] Gray to Canby, July 14, 1874, Gray, _Letters_, vol. II, p. 649. [76] Gray to Darwin, July 21, 1863, Gray, _Letters_, vol. II, p. 509. [77] _Life_, vol. I, p. 79. [78] To Fox, March 24, 1859, _Life_, vol. I, p. 506. [79] _Life_, vol. I, p. 83. [80] To Hooker, February, 1846, _More Letters_, vol. I, p. 56. [81] To Wallace, February 26, 1867, _Life_, vol. II, p. 276. [82] _Grammar of Science_, p. 38. [83] To Huxley, December 2, 1860, _Life_, vol. II, p. 147. [84] To Hooker, November 15, 1855, _More Letters_, vol. I, p. 84. [85] To Gray, November 29, 1859, _More Letters_, vol. I, p. 126. [86] _Beagle Journal_, p. 443. [87] _Life_, vol. I, p. 83. [88] Thiselton Dyer, in _Life_, vol. II, p. 431. [89] To Gray, 1857, _More Letters_, vol. II, p. 252. [90] To Hooker, January 11, 1844, _More Letters_, vol. I, p. 39. [91] To Wallace, May 1, 1857, _Life_, vol. I, p. 454.