00472nam a2200157Ia 4500003000900000008004100009040001600050080001600066100001900082245008700101260003200188300001500220650004100235650001200276650002600288IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a550.38bFLE  aFleming, J. A. 0aPhysics of the Earthbvol. III, terrestrial magnetism and electricitycJ A Fleming  aNew YorkbMcGraw-Hillc1939  axii, 794p.  aAstronomy and Astrophysics Thesaurus  aPhysics  aTerrestrial Magnetism