Hardcover, black cloth lettered in gold on spine, lacking dust-jacket. 355 pages. Supplementary essays by B. Malinowski and F.G. Crookshank. Index of Subjects and Index of Names. Tenth edition, fourth impression thus. Ex-library copy, most probably a private research collection, as the spine number is a simple “100”. Evidence of small labels removed from end-papers, else no other ex-libris markings. A title in the “International Library of Psychology, Philosophy and Scientific Method.” No previous ownership marks. No underlining, high-lighting or marginalia. Very small black dot from errant marker to fore-edge. Book shows spine cant from shelving and light toning to page margins from age. A tight, sound, and internally unmarked copy. Good.