01030cam a22003011  4500001001300000003000400013005001700017008004100034010001700075035001900092040004700111042001200158043001200170045000900182050002200191051002600213082001100239100003700250245013600287260002200423300003500445490007600480500003900556504005700595650002200652650002400674700003000698gs 43000002 DLC20260227111348.0780808s1942    oruab    b   s000 0 eng c  ags 43000002   a(OCoLC)4120153  aU. S. Geol. Survey. Libr.cNcRSdNcRSdDLC  apremarc  an-us-or  ax4x400aQE155b.A3 no. 23  aTN473.O7bH3cCopy 2.  a553.451 aHarrison, Harold Charles,d1907-13aAn investigation of the reported occurrence of tin at Juniper Ridge, Oregon,cby H. C. Harrison.  With geology by John Eliot Allen.  a[Portland]c1942.  a[56] p.billus., maps.c28 cm.0 aOregon. State Dept. of Geology and Mineral Industries. Bulletinvno. 23  aReproduced from type-written copy.  a"References" at end of each chapter except the last. 0aTin oreszOregon. 0aTin oresxAnalysis.1 aAllen, John Eliot,d1908-