Land magnetic and electric observations, 1918-1926.
Magnetic results, 1921-1926, by H. W. Fisk. Magnetic, atmospheric-electric, and auroral results, Maud Expedition, 1918-1925, by H. U. Sverdrup
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Item Link | Original Source |
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Full view | University of California |
Full view | University of Minnesota |
Full view | Cornell University |
Full view | Indiana University |