01217cam a22002891 4500 gs 14000783 DLC 20260227111316.0 790329s1914 dcuabf b 000 0 eng c gs 14000783 (OCoLC)4796896 Library, U.S. Geological Survey OCl OCoLC DLC QE75 .B9 no. 586 TN958 .D22 Dale, T. Nelson (Thomas Nelson), 1845-1937. Slate in the United States, by T. Nelson Dale and others [W. F. Hillebrand, E. C. Eckel, A. T. Coons] Washington, Govt. print. off., 1914. 220 p. illus., plates, maps (part fold.) fold. tab., diagrs. 24 cm. U. S. Geological survey. Bulletin no. 586 Many plates printed on both sides of leaves. "The present bulletin is not only a corrected and revised ed. of bulletin 275, but contains also the results of ... recent discoveries and studies." "Bibliography of slate": p. 205-213. Slate. Hillebrand, W. F. (William Francis), 1853-1925. Eckel, Edwin C. (Edwin Clarence), 1875-1941. Coons, Altha Titsworth. 25439 25439