Annals of the Astrophysical Observatory of the Smithsonian Institution (1900)
Washington : Government printing office · leaf 72
58 ANNALS OF THE ASTROPHYSICAL OBSERVATORY Mt. WILSON, SEPT.20, 1914. LOGARITHMIC CURVES or ATMOSPHERIC TRANSMISSION. … Fig. 7. — Logarithmic curves of atmospheric transmission, Mount Wilson, September 20, 1914. Note the two scales of ordinates.
Infrared spectra · Solar radiation
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