01060cam a22002531  4500001001300000003000400013005001700017008004100034010001700075035001900092040002400111042001200135050002300147082001200170100003300182245011700215260008600332300007800418490004900496501016100545504002700706650003400733740003900767gs 61000249 DLC20260227111410.0780914s1960    inuab    b   s000 0 eng    ags 61000249   a(OCoLC)4224969  aDLCcUUdOCoLCdDLC  apremarc00aQE109b.A32 no. 20  a557.7221 aGray, Henry Hamilton,d1922-10aGeology of the Huron area, south-central Indiana /cby Henry H. Gray, Robert D. Jenkins [and] Robert M. Weidman.  aBloomington :bState of Indiana, Dept. of Conservation, Geological Survey,c1960.  a78 p. :billus., maps (1 fold. col. in pocket), diagrs., tables ;c23 cm.0 aIndiana. Geological Survey. Bulletinvno. 20  aWith : Minerals of Indiana.  Bloomington : State of Indiana, Dept. of Conservation, Geological Survey, 1960.  Bound together subsequent to publication.5DLC  aBibliography: p.62-64. 0aGeologyzIndianazHuron area.0 aHuron area, south-central Indiana.