Optical mineralogy / by Austin F. Rogers and Paul F. Kerr. Rogers, Austin Flint, 1877- Kerr, Paul F. (Paul Francis), 1897- joint author. Mineralogy, Determinative. QE367 .R56 1942 549 ROO "Published formerly [1933] under the title: Thin-section mineralogy." Includes index. New York : McGraw-Hill Book, 1942. 1942. 1942 Text xvi, 390 p. : eng