Results of spirit leveling in Illinois, 1909 and 1910 / R.B. Marshall.
Series InformationBulletin (Geological Survey (U.S.))
- Physical Description: 1 online resource (115 pages, I page of plates) : illustrations.
- Publisher: Washington, D.C. : Department of the Interior, United States Geological Survey, 1911.
- Distributor: Washington : Government Printing Office
Title from title screen (viewed June 30, 2014).
"Work done in cooperation with the State of Illinois."
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|Subject:||Illinois > Altitudes.