[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.