[266] Psychol. als Wissenschaft, § 113.
[267] Lehrbuch d. Psychol., 2te Auflage, Bd. ii. p. 66. Volkmann's fifth chapter contains a really precious collection of historical notices concerning space-perception theories.
[268] Why talk of 'genetic theories'? when we have in the next breath to write as Wundt does: "If then we must regard the intuition of space as a product that simply emerges from the conditions of our mental and physical organization, nothing need stand in the way of our designating it as one of the a priori functions with which consciousness is endowed." (Logik, ii. 460.)
[269] P. 430.
[270] Pp. 430, 449.
[271] P. 428.
[272] P. 442.
[273] Pp. 442, 818.
[274] P. 798. Cf. also Popular Scientific Lectures, pp. 301-3.
[275] P. 456; see also 428, 441.