no. 3 



RADIATION OF THE ATMOSPHERE ANGSTROM 



45 



measurements unfortunately do not proceed farther than to the 

 water-vapor band at 2.7 /x and include therefore a part of the spectrum 

 that is comparatively unimportant for the " cold radiation " with 

 which we are dealing here. The maximum of radiation from a black 

 body at 285 degrees absolute temperature occurs at about 10 ^, and 



Table VI — Mt. San Antonio and Lone Pine Canyon 



Means. 



4.50-5.50 



5.09 



0.359 

 0.346 



o.35i 

 0.382 



0.375 

 0.397 



0.368 



5.50-6.50 



30 



6.08 



0.358 

 0.362 

 0.352 

 0.371 

 0.378 

 0.374 

 0.375 

 0.391 

 0.383 

 0.386 

 0.372 



0.373 



6.50-7.50 



7.78 



0.366 



therefore we cannot apply the numerical results of Miss v. Bahr to the 

 radiation of the atmosphere. 



At any rate, the conclusion seems to be justified that if we take 

 the absolute humidity at the place of observation as a measure for 

 the radiating power of the integral water vapor, the result would be 



