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.

[92] To Carpenter, November 19, 1859, _Life_, vol. II, p. 19.

[93] To Huxley, May 27, 1865, _Life_, vol. II, p. 228.

[94] Aristotle, _Historia Animalium_, Book I, chapter VI.

[95] _Life_, vol. I, p. 126.

[96] To Hooker, April 14, 1855, _Life_, vol. I, p. 415.

[97] To Hooker, March 26, 1863, _More Letters_, vol. I, p. 474.

[98] _Genetics and Eugenics_, p. 181.

[99] De Vries, _Species and Varieties_, p. 769.

[100] _Different Forms of Flowers_, p. 156.

[101] To Gray, April 3, 1860, _Life_, vol. II, p. 90.

[102] _Zur Naturwissenschaft, Einzelne Betrachtungen und Aphorismen_, section III.

[103] _Life_, vol. I, p. 121.

[104] To Wiesner, October 25, 1881, _Life_, vol. II, p. 510.

[105] _Life_, vol. I, p. 122.

[106] _Orchids_, p. 208.

[107] To Huxley, November 27, 1859, _Life_, vol. II, p. 75.

[108] _Insectivorous Plants_, p. 154.

[109] To Gray, June 8, 1860, _More Letters_, vol. I, p. 153.

[110] Huxley to Romanes, May 9, 1882, _Life of Huxley_, vol. II, p. 42.

[111] Huxley to Foster, February 14, 1888, _Life of Huxley_, vol. II, p. 203.

[112] Huxley to Hooker, March 9, 1888, _Life of Huxley_, vol. II, p. 204.

[113] _Darwiniana_, p. 287.

[114] Alexander Agassiz to Gibbs, December 15, 1897, in G. R. Agassiz, _Letters and Recollections of Alexander Agassiz_, p. 333.

[115] J. J. Stevenson, in _Popular Science Monthly_, April, 1909, vol. LXXIV, p. 353.

[116] October 2, 1879, _Life_, vol. II, p. 360.

[117] May 5, 1881, _More Letters_, vol. II, p. 198.

[118] _Descent_, p. 606.

[119] September 23, 1868, _More Letters_, vol. II, p. 85.

[120] August 19, 1868, _More Letters_, vol. II, p. 84.

[121] To Wallace, April 30, 1868, _More Letters_, vol. II, p. 77.

[122] To Huxley, June 12, 1867, _More Letters_, vol. I, p. 281.

[123] _Animals and Plants_, vol. II, p. 396.

[124] _Animals and Plants_, vol. II, p. 399.

[125] _Life_, vol. I, p. 75.

[126] August Weisman, _The Evolution Theory_ (translation Thomson), vol. I, p. 242.

[127] _Darwiniana_, p. 20.

[128] To Hooker, January 20, 1859, _Life_, vol. I, p. 499.

[129] _Life_, vol. I, p. 77.

[130] Vallery-Radot, _Pasteur_, p. 139.

[131] _Life_, vol. I, p. 71.

[132] To Lyell, September 20, 1859, _Life_, vol. I, p. 521.

[133] _Life_, vol. I, p. 130.

[134] _Life_, vol. I, p. 117.

[135] July 2, 1860, _Life_, vol. II, p. 116.

[136] To Lyell, August 1, 1845, _Life_, vol. I, p. 308.

[137] To Hooker, September 25, 1853, _Life_, vol. I, p. 400.

[138] _Origin_, p. 404.

[139] To Hooker, October, 1856, _Life_, vol. I, p. 443.

[140] To Henslow, _Life_, vol. I, p. 245.

[141] To Huxley, July 3, 1860, _Life_, vol. II, p. 117.

[142] _Life_, vol. I, p. 72.

[143] To Lyell, October 1, 1861, _More Letters_, vol. II, p. 191.

[144] _Zur Naturwissenschaft, Einzelne Betrachtungen und Aphorismen_, section III.

[145] To Hooker, December 10, 1866, _Life_, vol. II, p. 239.

[146] To Hooker, May 2, 1857, _Life_, vol. I, p. 454.

[147] _Darwiniana_, p. 246.

[148] To De Candolle, January 14, 1863, _More Letters_, vol. I, p. 234.

[149] To Hooker, April 1, 1864, _More Letters_, vol. II, p. 330.

[150] To Hooker, April, 1857, _Life_, vol. I, p. 450.

[151] To Hooker, March 7, 1855, _Life_, vol. I, p. 405.

[152] To Hooker, July 30, 1856, _Life_, vol. I, p. 439.

[153] To Huxley, January 10, 1863, _More Letters_, vol. I, p. 231.