01959oam 2200517 450 991070373970332120150831093757.0(CKB)5470000002434325(OCoLC)882401785(EXLCZ)99547000000243432520140701d1912 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierResults of spirit leveling in Pennsylvania, 1899 to 1911, inclusive /R.B. Marshall ; work done in cooperation with the State[Washington, D.C.] :Department of the Interior, United States Geological Survey,1912.Washington :Government Printing Office.1 online resource (164 pages, I page of plates) illustrationsBulletin / Department of the Interior, United States Geological Survey ;515Title from title screen (viewed June 30, 2014)."Cooperation -- Equal allotments of funds for the work were made by the United States Geological Survey and the Topographic and Geological Survey Commission of Pennsylvania"--Page 7.Includes index.LevelingPennsylvaniaBench-marksPennsylvaniaAltitudesfastPennsylvaniaSurveysPennsylvaniaAltitudesPennsylvaniafastLevelingBench-marksAltitudes.Marshall R. B(Robert Bradford),1867-1949,1387024Geological Survey (U.S.),Pennsylvania.Topographic and Geological Survey Commission,COPCOPOCLCOOCLCFOCLCAGPOBOOK9910703739703321Results of spirit leveling in Pennsylvania, 1899 to 1911, inclusive3456894UNINA