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Cover of Beiträge zur Kenntniss des Wesens der Säcular-Variation des Erdmagnetismus

Beiträge zur Kenntniss des Wesens der Säcular-Variation des Erdmagnetismus

GeomagnetismSecular variations

Writing a summary for young readers…

For young readers

Book data: Open Library

Book Glossary · bookglossary.comA nonprofit resource from Dover Public Library and the Tuscarawas County Literacy Coalition.