00746cam a22002411 4500 gs 08000076 DLC 20260227111307.0 790215s1907 xx 000 0 eng c gs 08000076 (OCoLC)4659066 U.S. Geol. Survey. Libr. OCl OCoLC DLC premarc TN845 .C415 Canada. Mines Branch (1901-1936) Graphite, its properties, occurrence, refining and uses, by Fritz Cirkel. Ottawa, 1907. 11, 307 p. illus., 21 pl., 10 maps. 26 cm. Part of illustrative matter folded. Bibliography: p. 287-289. Graphite. Cirkel, Fritz, 1863-1914. 24710 24710