References
A. Bain, The Emotions and the Will, [1859] 1880; C. Darwin, The Expression of the Emotions in Man and Animals, 1872; W. James, Principles of Psychology, ii., 1890, chs. xxiv., xxv.; T. Ribot, The Psychology of the Emotions, 1897; J. Sully, An Essay on Laughter, 1902; W. Wundt, Outlines of Psychology, 1907, § 13; W. McDougall, An Introduction to Social Psychology, 1908; E. B. Titchener, Text-book of Psychology, 1910, 462 ff., 471 ff.; H. Bergson, Laughter, 1911; E. L. Thorndike, The Original Nature of Man, 1913; W. B. Cannon, Bodily Changes in Pain, Hunger, Fear and Rage, 1915.