Abstract
WE were much interested in a valuable paper by Mitra and Rakshit on “The Upper Ionized Atmosphere in Bengal”1. Their extension, to sub-tropical regions, of soundings of the ionosphere is very important. We are not concerned here to point out the bearing of the magneto-ionic theory on the results obtained by these authors, but the reading of the paper leads us to record one point arising from our experience of such work.
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References
Phil. Mag., 15, 20; 1933.
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WATSON WATT, R., BAINBRIDGE-BELL, L. Recording Wireless Echoes at the Transmitting Station. Nature 131, 657–658 (1933). https://doi.org/10.1038/131657b0
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DOI: https://doi.org/10.1038/131657b0