[34] History of Creation, 1884, vol. i., p. 178.

[35] The Descent of Man, 1887, p. 243.

[36] History of Greenland, vol. i., p. 152.

[37] Pop. Science Monthly, vol. xix., p. 567.

[38] Pop. Science Monthly, vol. xxxi., p. 796.

[39] American Nervousness, p. 207.

[40] Maudsley, Physiology and Pathology of the Mind, p. 360.

[41] The Descent of Man, 1877, p. 102.

[42] The Descent of Man, 1877, p. 559.

[43] Maudsley, Physiology and Pathology of the Mind, p. 60.