London: George Allen & Company, Ltd., 1913. [Psychology] FIRST EDITION IN ENGLISH, first impression. Octavo (22 x 15cm), pp.[2] xiv; 510 [2]. With the erratum slip facing p.1. Publisher's blue cloth with gilt titles to spine and upper. Toning to edges and endpapers. Toning also to spine, with light general wear to cloth and a small water stain to upper. Two large areas of heavy damp / mould staining to lower board and spine, with an associated brown stain to bottom corner of the text block, p.290 to end, not affecting text. Good.