2 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. Ill 



In 1947 the Astrophysical Observatory temporarily established at 

 Miami, Fla., a solar field station, to carry out certain radiation mea- 

 surements under contract with the Office of the Quartermaster 



.7 

 RATIO 



S 4 .3 



BOTTOM OF bAND 

 SMOOTH CURVE 



Fig. I. 



-Fowle's precipitable-water curves. 

 (See table i.) 



General. These measurements are a part of studies of the causes of 

 deterioration of textiles, and at Miami are conducted in cooperation 

 with the South Florida Test Service and with the General Motors 

 Corporation on whose test field the observations are made. A part 



