00929cam a22002531i 4500001001300000003000400013005001700017008004100034010001700075035001900092040002100111042001200132043001200144045000900156050002200165100005200187245022300239260004300462300002700505490004100532500002000573651002500593810005700618gs 15000233 DLC20260227111317.0790911s1914    dcuf         f001 0 eng    ags 15000233   a(OCoLC)5362082  aDLCcICharEdDLC  apremarc  an-us-md  aw9x100aQE75b.B9 no. 5631 aMarshall, R. B.q(Robert Bradford),d1867-1949.10aResults of spirit leveling in Maryland, 1896 to 1911, inclusive /cR.B. Marshall, chief geographer; work done in cooperation with the State through the Maryland Geolgical Survey, William Bullock Clark, state geologist.  aWashington,bGovt. Print. Off.,c1914.  a80 p. :bpl. ;c24 cm.1 aU.S. Geological survey. Bulletin 563  aIncludes index. 0aMarylandxAltitudes.1 aUnited States.bGeological Survey.tBulletin ;v563.