Digest of geodetic publications issued by the United States Coast and Geodetic Survey resulting from surveys in the state of Illinois.
Subtitle: Triangulation, leveling, variation of compass.
Publisher: Govt. Print. Off.
Published: 1920
Place of publication: Washington
Language: eng
Number of pages: 11
Subjects: Geodesy -- United States.
Notes: At head of title: Serial no. 137. Department of Commerce. U.S. Coast and Geodetic Survey. E. Lester Jones, director.