Conant, James Bryant On understanding science an historical approach. With a new foreword by the author. - [New York] New American Library [1951] - 144 p. illus. 18 cm. - A Mentor book . LCCN: 51008972 Subjects--Topical Terms: Science--Study and teaching.Science--Philosophy.Science--History. LC Class. No.: Q181 / .C56 1951 Dewey Class. No.: 507