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pl23_cgs06228.jpg

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https://www.noaa.gov/media/digital-library-photo/pl23cgs06228jpg

Description

Annual Report 1862. No. 47 Chart of Iso-Magnetic Lines of Pennsylvania for 1842. Declination 1842. Declination 1862. Inclination. Magnetic Stations.Horizontal Force. Total Force.

Credit

United States Coast Survey Annual Report 1862

Display Date

1862

Collection

Historic Coast & Geodetic Survey

Historic Maps

United States Coast Survey Annual Report

Keywords

Historical Cartography