Principal facts of the earth's magnetism and methods of determining the true meridian and the magnetic declination.

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Corporate Author
U.S. Coast and Geodetic Survey
Language(s)
English
Published
Washington, Govt. print. off., 1909.
Subjects
Geomagnetism
Note
At head of title: Department of commerce and labor. Coast and geodetic survey. O. H. Tittmann, superintendent.
Physical Description
99 p. front., illus., plates, tables, charts, diagrs. 31 cm.
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