NO. 6 SOLAR RADIATION AND WEATHER CLAY 



TON 



17 



Solar Radiation below 1.911 (2% "below normal) 

 Pressure same day Winter half year 



Solar Radiation 1.921-30 (1% "below normal) 

 Pressure same day Winter half year 



MO (OS 



Solar Radiation 1.931-40 (0.6^ below normal) 

 Pressure same day V/inter half year 



lit IIP Iff 



Fig. id. — Mean pressure deviations from normal following dif- 

 ferent intensities of solar radiation in steps below 1.941, winter 

 half-year. Units in hundredths of an inch. Same day. 

 2 



