[49] Kiernan, Journ. Nerv. and Mental Diseases, Vol. X, p. 234.
[50] Psychological Medicine, Bucknill and Tuke, 4th ed., p. 731.
[51] Clinical Lectures on Mental Diseases.
[52] Ringer’s Therapeutics, 10th ed., p. 421.
[53] C. H. Jones, Functional Nervous Disorders, p. 284.
[54] Am. Jour. Med. Sci., Oct., 1881, p. 313.
[55] Handbuch der Kinderkrankheiten, Vol. I., p. 214.
[56] Op. cit., Vol. I., Pt. 2, p. 153.
[57] Herbert Spencer, First Principles, p. 486.
[58] A. Maury. Le Sommeil et les Rêves, p. 154.