Principal facts of the earth's magnetism and methods of determining the true meridian and the magnetic declination
Principal facts of the earth's magnetism and methods of determining the true meridian and the magnetic declination
- Washington, D. C. Department of U. S. Coast and Geoelectric Survey 1909
- 99p. charts; diagrams; illus; plates; tables
1152034375
Earth's Magnetic PolesMagnetic ChartsMagnetic ObservationsMagnetic SurveysVariations of Earth's Magnetism
550.38 / USCGS
1152034375
Earth's Magnetic PolesMagnetic ChartsMagnetic ObservationsMagnetic SurveysVariations of Earth's Magnetism
550.38 / USCGS