01136cam a22002891  4500001001300000003000400013005001700017008004100034010001700075035001900092040004800111042001200159050001600171100003300187245016000220260004800380300005200428490008300480500009100563650001500654650002000669700003600689700003600725700003200761700003600793999001700829gs 23000276 DLC20260227111327.0761220s1922    mduaf         001 0 eng c  ags 23000276   a(OCoLC)2636201  aLibrary, U. S. Geological SurveycTxWBdDLC  apremarc00aTN942b.W271 aWatts, Arthur Simeon,d1876-14aThe fire clays of Maryland,cby Arthur S. Watts, H. G. Schurecht, Charles K. Swartz and George M. Hall.  With an introductory chapter by Edward B. Mathews.  aBaltimore,bThe Johns Hopkins press,c1922.  a270 p.billus., IV pl., tables, diagrs.c26 cm.0 aMaryland.  Geological survey, 1896-      Special publications.vVol. XI, pt. 2  aAlso published in Maryland.  Geological survey.  [Reort]  Vol. XI (1922) p. [289]-559. 0aFire-clay. 0aClayzMaryland.1 aSchurecht, Harry George,d1892-1 aSwartz, Charles Kephart,d1861-1 aHall, George Martin,d1891-1 aMathews, Edward Bennett,d1869-  c26270d26270