Results of magnetic observations made by the United States Coast and Geodetic survey in 1920 / by Daniel L. Hazard.

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Main Author: Hazard, Daniel L. (Daniel Lyman), 1865-1951
Corporate Author: U.S. Coast and Geodetic Survey
Other title:At head of title: Terrestrial magnetism.
Format: Government Document Book
Language:English
Published: Washington : G.P.O., 1921.
Series:Special publication (U.S. Coast and Geodetic Survey) ; no. 72.
Serial (U.S. Coast and Geodetic Survey) ; 161.
Subjects: