Abstract
RECENT reports by E. V. Appleton and his associates, Norwegian and other1, have brought out the complex connexions between the optical and magnetic phenomena of the upper atmosphere. The considerations that follow touch only the fringe of this interesting subject: but it may be permitted to record them before they pass out of memory.
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References
NATURE, 132, 340, Sept. 2, 1933.
Proc. Roy. Soc., 1928.
cf. Phil. Mag., Jan. 1884 ; "Math. and Phys. Papers", vol. 1, p. 28.
Terrestrial Magnetism, 1931-33.
Proc. Phys. Soc., Feb. When this was written I had not seen their records for short waves, and their cyclicity in the magnetic field, which is not very far from vertical, in Phil. Mag. for July. Clearly there is much to be learned here.
cf. Kolhörster, H., NATURE, 132, 407, Sept. 9, 1933.
cf. Dirac's "Quantum Mechanics", p. 121 ; G. D. Birkhoff, Proc. Nat. Acad., March 1933, p. 339: also Levi-Civitál, Bull. Amer. Math. Soc., Aug. 1933. An early attempt toward such correlation is in the writer's "Papers", vol. 2 (1928), p. 809.
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LABMOR, J. Auroras, Electric Echoes, Magnetic Storms. Nature 133, 221–223 (1934). https://doi.org/10.1038/133221a0
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DOI: https://doi.org/10.1038/133221a0