^Q ANNUAL EEPOETS OP DEPARTMENT OF AGRICULTURE. 



The Weather Bureau is now obtainmg continuous records of the 

 amount of solar and sky radiation received on a horizontal surface 

 at Washington, D. C, Madison, Wis., and Lincoln, Nebr. At each of 

 these stations, and also at Santa Fe, N. Mex., the intensity of direct 

 solar radiation on a surface normal to the incident solar rays is meas- 

 ured at frequent intervals on clear days. 



