00960cam a22002531 4500 gs 32000197 DLC 20260227111337.0 820114s1932 sdu 000 0 eng c gs 32000197 (OCoLC)8063719 U. S. Geol. Survey Libr. GStG OCoLC DLC premarc TP326.U6 S875 Searight, Walter Vernon, 1896- Slacking properties of South Dakota coals, by W. V. Searight. Vermillion, S.D., University of South Dakota, 1932. 2 p. l., 14 numb. l. incl. diagrs. 28 cm. South Dakota. State Geologist. Report of investigations, no. 12 At head of title: South Dakota geological and natural history survey, E. P. Rothrock, state geologist. Mimeographed. Coal South Dakota. Report of investigations (South Dakota Geological Survey) ; no. 12. 26973 26973