A textbook of geology : pt. I. Physical geology / by Chester R. Longwell, Adolph Knopf and Richard F. Flint. Longwell, Chester R. 1887-1975. (Chester Ray), Knopf, Adolph, 1882- Flint, Richard Foster, 1902- Geology. 550 LOT Includes bibliographical references and index. New York : Wiley, 1946. 1946. 1939 Text 2 v. : eng