[9] Meumann, E.: Phil. Stud., 1894, X., S. 249 ff.
[10] Ebhardt, K.: Zeilschr. f. Psych, u. Physiol. d. Sinnesorgane, 1898, Bd. 18, S. 99.
[11] Hurst, A.S., McKay, J., and Pringle, G.C.F.: Univ. of Toronto Studies, 1899, No. 3, p. 157.
[12] Scripture, E.W.: Studies from the Yale Psych. Lab., 1899, VII., p. 1.
[13] Marage: l'Année psychologique, 1898, V., p. 226.
[14] Rousselot: La Parole, 1899.
[15] Scripture, E.W.: Studies from the Yale Psych. Lab., 1899, VII., p. I.
[16] Hensen: Hermann's Handbuch d. Physiol., 1879, Bd. I., Th. II., S. 187.
[17] Sherrington, C.S.: Proceedings Royal Soc., 1897, p. 415.
[18] Hering, H.E.: Archiv f. d. ges. Physiol. (Pflüger's), 1897, Bd. 68, S. 222; ibid., 1898, Bd. 70, S. 559.