New York: Harcout, Brace, and Company, 1930.
First American Edition. Hardcover. fine in a fair dust jacket. 136 pp. indexed. A fine copy in original green cloth binding. Dust jacket split at front joint (i.e., where the front panel meets the spine) and also has some chipping and a split going partway up the center of the spine; fair only, but presents reasonably well in its mylar cover. An influential work of experimental psychology.