Fonctions du Cerveau, 1825, vol. iii, p. 337.
W. Ellis, Treatise on Insanity, 1838, pp. 335, 340.
Clara Barrus, "Insanity in Young Women," Journal of Nervous and Mental Disease, June, 1896.
See, for instance, H. Emminghaus, "Die Psychosen des Kindesalters," Gerlandt's Handbuch der Kinder-Krankheiten, Nachtrag II, pp. 61-63.