00828cam a22002411  4500001001300000003000400013005001700017008004100034010001700075035001900092040005200111042001200163050002200175051002500197100003200222245008000254260005300334300006300387490005000450650002000500700004900520999001700569gs 17000415 DLC20260227111321.0780323s1917    vaubf         000 0 eng c  ags 17000415   a(OCoLC)3743350  aLibrary, U.S. Geological SurveycOTdNSbSUdDLC  apremarc00aQE173b.A2 no. 13  aTN942b.R47cCopy 2.1 aRies, Heinrich,d1871-1951.04aThe clays of the Piedmont Province, Virginia,cby H. Ries and R. E. Somers.  aCharlottesville,bUniversity of Virginia,c1917.  avi, [2], 86 p.bXV pl. (incl. fold. map in pocket)c26 cm.0 aVirginia. Geological survey. Bulletinvno. 13 0aClayzVirginia.1 aSomers, Ransom Evarts,d1885-ejoint author.  c25793d25793