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Start Over You searched for: Subject Geomagnetism Remove constraint Subject: Geomagnetism Year 1896 Remove constraint Year: 1896

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2. Isogonic chart for the epoch Jan 1900

Yale Public content
1896. 2013-11-07T15:37:39Z. 2018-12-10T20:23:52Z. U.S. Coast and Geodetic Survey, issuing body. U.S. Coast & Geodetic Survey. English. Public. Alaska and Siberia, Eastern (Russia).