[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.