[215] A good deal of this chapter is reprinted from an article 'On some Omissions of Introspective Psychology' which appeared in 'Mind' for January 1884.
[216] B. P. Bowne: Metaphysics, p. 362.
[217] L'Automatisme Psychologique, p. 318.
[218] Cf. A. Constans: Relation sur une Épidémie d'hystéro-démonopathie en 1861. 2me ed. Paris, 1863.—Chiap e Franzolin: L'Epidemia d'istero-demonopatie in Verzegnis. Reggio, 1879.—See also J. Kerner's little work: Nachricht von dem Vorkommen des Besessenseins. 1836.
[219] For the Physiology of this compare the chapter on the Will.
[220] Loc. cit. p. 316.
[221] The Philosophy of Reflection, i, 248, 290.
[222] Populäre Wissenschaftliche Vorträge, Drittes Heft (1876). p. 72.
[223] Fick, in L. Hermann's Handb. d. Physiol., Bd. iii, Th. i, p. 225.
[224] It need of course not follow, because a total brain-state does not recur, that no point of the brain can ever be twice in the same condition. That would be as improbable a consequence as that in the sea a wave-crest should never come twice at the same point of space. What can hardly come twice is an identical combination of wave-forms all with their crests and hollows reoccupying identical places. For such a total combination as this is the analogue of the brain-state to which our actual consciousness at any moment is due.