TY - BOOK AU - Short,Maxwell Naylor TI - Microscopic determination of the ore minerals, T2 - U.S. Geological survey. Bulletin 914 AV - QE75 .B9 no. 914 U1 - 549.1557.3 PY - 1940/// CY - Washington PB - U.S. Govt. print. off. KW - Mineralogy, Determinative KW - Ore deposits N1 - At head of title: United States Department of the interior; Plates 2-5 have descriptive letterpress on verso; Plates 3-5 are double; Bibliographical foot-notes ER -