01234cam a22002531  4500001001300000003000400013005001700017008004100034010001700075035001900092040004400111042001200155050002300167110003700190245040800227260007800635300007300713490002500786500003200811650002500843700003600868830005900904999001700963gs 15000804 DLC20260227111318.0750818s1915    iluab        s000 0 eng c  ags 15000804   a(OCoLC)1555572  aU.S. Geol. Survey. Libr.cIdOCoLCdDLC  apremarc00aQE105b.A16 no. 312 aIllinois State Geological Survey10aOil investigations in Illinois in 1914.bArea south of the Colmar oil field, by William C. Morse and Fred H. Kay. The Coolmar oil field--a restudy, by William C. Morse and Fred H. Kay. The Allendale oil field, by John L. Rich. Anticlinal structure in Randolph County, by Stuart Weller. Oil and gas in Gillespie and Mt. Olive quadrangles, by Wallace Lee.cWork in cooperation with U.S. Geological survey.  aUrbana,bIllinois State Geological Survey, University of Illinois,c1915.  a111 p.billus., fold. maps, fold. tab., diagrs. (part fold.)c26 cm.1 aIts Bulletinvno. 31  aBound with Bulletin no. 29. 0aPetroleumzIllinois.1 aMorse, William Clifford,d1874- 0aBulletin (Illinois State Geological Survey) ;vno. 31.  c25588d25588