00805cam a22002411 4500 gs 20000418 DLC 20260227111325.0 720328s1920 dcuabf 000 0 eng gs 20000418 (OCoLC)271916 DLC ODaWU DLC QE75 .B9 no. 697 TN946 .S78 Copy 2. Stone, Ralph W. (Ralph Walter), 1876-1964. Gypsum deposits of the United States, by R.W. Stone and others. Washington, Govt. print. off., 1920. 326 p. illus., 36 pl. (incl. maps: part fold.) tables, diagrs. 23 cm. U.S. Geological survey. Bulletin 697 Bibliography: p. 309-316. Mines and mineral resources United States. Gypsum. 26045 26045