Spirit leveling in Illinois, 1896-1942 /

Bibliographic Details
Corporate Author:	Illinois State Geological Survey (sponsoring body.)
Format:	Government Document eBook
Language:	English
Published:	[Washington, D.C.] : United States Department of the Interior, Geological Survey, 1944.
Series:	Bulletin (Geological Survey (U.S.)) ; no. 930.
Subjects:	Leveling > Illinois. Bench-marks > Illinois. Altitudes. Bench-marks. Leveling. Illinois > Altitudes. Illinois > Surveys. Illinois.
Online Access:	https://purl.fdlp.gov/GPO/gpo63452

Description
Item Description:	At head of title: United States Department of the Interior, Geological Survey. Issued in two volumes, each volume has two parts. Title from title screen (viewed Dec. 9, 2015). Master microform held by: UnM.
Physical Description:	1 online resource (2 volumes) : illustrations, maps.
Bibliography:	Includes bibliographical references and index.