[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.