Land magnetic and electric observations, 1918-1926
by Carnegie Institution of Washington. Dept. of Terrestrial Magnetism, H. W. Fisk, H. U. Sverdrup
Geomagnetism--ObservationsAtmospheric electricityAurorasMaud Expedition (1918-1925)
<p>Magnetic results, 1918-1926, by H. W. Fisk. Magnetic, atmospheric-electric, and auroral results, Maud Expedition, 1918-1925, by H. U. Sverdrup.</p><p></p>Carnegie Institution of Washington publication 175, vol. VI<p></p>"Researches of the Department of Terrestrial Magnetism, vol. VI"
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