Northrop E. P.. Fundamental mathematics. Prepared for the general course Mathematics 1 in the College . Second edition, planographed. The University of Chicago Bookstore, Chicago 1946, xi + 24 + 12 + 16 + 14 + 100 + 42 + 3 + 25 + 36 + 31 + 40 + 44 + 1 pp.