This is an OCR edition without illustrations or index. It may have numerous typos or missing text. However, purchasers can download a free scanned copy of the original rare book from GeneralBooksClub.com. You can also preview excerpts from the book there. Purchasers are also entitled to a free trial membership in the General Books Club where they can select from more than a million books without charge. Original Published by: Warwick & York in 1916 in 214 pages; Subjects: Educational psychology; Psychophysiology; Psychology, Physiological; Education / Educational Psychology; History / General; Psychology / General; Psychology / Physiological Psychology; Psychology / Research & Methodology; Psychology / Experimental Psychology;