01222cam a22003131 4500 gs 49000157 DLC 20260227111355.0 780816s1949 moua b s001 0 eng c gs 49000157 (OCoLC)4144541 U.S. Geol. Survey. Libr. NcRS DLC premarc n-us-mo x4x4 QE131 .A25 no. 10 551.72 Grohskopf, John Gustave, 1903- Insoluble residues of some Paleozoic formations of Missouri, their preparation, characteristics and application, by John G. Grohskopf and Earl McCracken. Rolla, 1949. 39 p. illus. 23 cm. Missouri. Dept. of Business and Administration. Division of Geological Survey and Water Resources. Report of investigations, no. 10 Bibliographical footnotes. Geology Missouri. Geology, Stratigraphic Paleozoic. Rocks Analysis. McCracken, Earl, joint author. Missouri. Department of Business and Administration. Division of Geological Survey and Water Resources. Report of investigations, no. 10. 28385 28385