W. Hallock — Very on Atmospheric Radiation. 233 



radiation of a like depth of carbon dioxide at the same tern 

 perature is three and one-half times that of air, or 0*00238 radim, 













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Fig. 3. Approximate spectral energy-curve of air radiation, for moist air at 

 50° C. Wave-lengths laid off as abscissas. 



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Fig. 4. Curve of transmission of radiation by the earth's atmosphere. Wave- 

 lengths as abscissas and percentage transmission as ordinates. The probable 

 cause of the absorption band is indicated in each case. 



