01056cam a22002771 4500001001300000003000400013005001700017008004100034010001700075035001900092040004100111042001200152050002200164082001000186100003400196245006800230260004800298300006600346490004200412500014400454500008200598504003200680650003100712650001800743999001700761gs 31000095 DLC20260227111335.0780124s1931 dcuaf b 000 0 eng c ags 31000095  a(OCoLC)3577964 aU.S. Geol. survey. LibrarycCCCdDLC apremarc00aQE75b.B9 no. 825 a549.11 aShort, Maxwell Naylor,d1889-10aMicroscopic determination of the ore minerals,cby M. N. Short. aWashington,bU.S. Govt. Print. Off.,c1931. avii, 204 p.bincl. illus., tables. 11 pl. (part col.)c23 cm.0 aU. S. Geological survey. Bulletin 825 aAt head of title: United States Department of the interior. Ray Lyman Wilbur, secretary. Geological survey. George Otis Smith, director ... aThe second edition, 1940, was issued as U. S. Geological survey Bulletin 914. aBibliographical foot-notes. 0aMineralogy, Determinative. 0aOre deposits. c26863d26863