01893oam 2200577I 450 991069862540332120150915155612.0(CKB)5470000002436393(OCoLC)882365710(EXLCZ)99547000000243639320140701d1910 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierResults of spirit leveling in Illinois, 1896 to 1908, inclusive /compiled by S.S. Gannett and D.H. Baldwin ; in cooperation with the Illinois State Geological Survey during 1905 to 1908, inclusiveWashington, D.C. :Department of the Interior, United States Geological Survey,1910.Washington :Government Printing Office.1 online resource (74 pages)Geological Survey bulletin ;421Title from title screen (viewed June 30, 2014).Includes index.Bench-marksIllinoisLevelingIllinoisAltitudesfastBench-marksfastLevelingfastIllinoisSurveysIllinoisAltitudesIllinoisfastSurveys.fastBench-marksLevelingAltitudes.Bench-marks.Leveling.Gannett Samuel S(Samuel Stinson),1861-1939,1389480Baldwin D. H.1873-1952,Geological Survey (U.S.),Illinois State Geological Survey,COPCOPOCLCOOCLCFOCLCAGPOBOOK9910698625403321Results of spirit leveling in Illinois, 1896 to 1908, inclusive3479503UNINA