Princeton, NJ / London: Princeton University Press / London: Humprey Milford, Oxford University Press, 1917. Octavo, grey printed card covers. (viii), 87 pp. Light tanning to margins of covers, very small chips to spine tips & outer corners, VG tight copy. "Presented to the Faculty of Princeton University in Candidacy for the Degree of Doctor of Philosophy." Note: lighter parcel, any default postage rate may be reduced.