01246cam a22003371  4500001001300000003000400013005001700017008004100034010001700075035001900092040001800111043001200129050002400141051001600165110003200181245007000213260004800283300006400331500005000395500010700445500008800552504002800640650002300668650003800691650004000729650002300769650002800792650003000820700004100850999001700891gs 20000192 DLC20260227111324.0750903s1919    mduabf   b    000 0 eng    ags 20000192   a(OCoLC)1594979  aDLCcViWdDLC  an-us-md00aQE121b.A215 vol. 7  aQE654b.M262 aMaryland Geological Survey.10aCambrian and Ordovician [deposits of Maryland,cby R. S. Bassler]  aBaltimore,bThe Johns Hopkins press,c1919.  a424 p.billus., LVIII pl. (incl. fold. map) diagrs.c26 cm.  aAt head of title: Maryland geological survey.  a"The seventh of a series of reports dealing with the systematic geology and paleontology of Maryland."  aVersos of some of the plates on which explanations are given are numbered as pages.  aBibliography: p. 34-44. 0aGeologyzMaryland. 0aGeology, StratigraphicyCambrian. 0aGeology, StratigraphicyOrdovician. 0aFossilszMaryland. 0aPaleontologyyCambrian. 0aPaleontologyyOrdovician.1 aBassler, Ray S.q(Ray Smith),d1878-  c26004d26004