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

Description

Viewability

Item Link Original Source
Full view   University of California
Full view   University of Minnesota
Full view   Cornell University
Full view   Indiana University