00999cam a22002651 4500 gs 39000018 DLC 20260227111343.0 730129s1938 nyuaf b 000 0 eng c gs 39000018 (OCoLC)547008 U.S. Geol. Survey. Library ODaWU OCoLC DLC premarc QE431 .K58 Knopf, Eleanora Frances Bliss, 1883- Structural petrology, by Eleanora Bliss Knopf and Earl Ingerson. [New York] Published by the Society, 1938. xv, 270 p. illus., 27 pl. (incl. col. front.) on 17 l., diagrs. 26 cm. Geological Society of America. Memoir 6 Bibliographical foot-notes. pt. I. Principles of structural petrology, by E. B. Knopf.--pt. II. Laboratory technique of petrofabric analysis, by Earl Ingerson. Petrology. Rocks Analysis. Ingerson, Earl, 1906- joint author. 27505 27505