Outlines of physical geology / by Chester R. Longwell, Adolph Knopf [and] Richard F. Flint. Physical geology. Longwell, Chester R. (Chester Ray), 1887-1975. Knopf, Adolph, 1882-1966, author. Flint, Richard Foster, 1902-, author. Geology. QE26 .T42 1941 551 LOO Based on the author's "Textbook of physical geology" published in 1982. cf. Pref. Includes index. New York : J. Wiley & Sons, Inc., London : Chapman & Hall, Limited, 1937. 1937. 1941 Text v, 241 p. : eng