Abstract
MY letter in NATURE of October 211, communicating Mr. Booth's correction on this subject, has elicited the information that the exponential integral solution for the absorption of the rays was given in 1926 by Edward Condon2, to whom the priority is due. He pointed out that the effect of the atmosphere would work towards making the residual radiation more nearly a parallel beam, for which the simple exponential law applies, but not that the correction for the atmosphere can be applied in the same way for the correct formula as it has been for the incorrect.
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References
NATURE, 132, 638, Oct. 21, 1933.
Proc. Nat. Acad. Sci., 12, 323; 1926.
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SODDY, F. The Exponential Integral and Cosmical Radiation. Nature 132, 898 (1933). https://doi.org/10.1038/132898c0
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DOI: https://doi.org/10.1038/132898c0
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