METEOROLOGY. 



331 



The sun's diurnal intensity at every teii degrees of latitude in the 



northern hemisphere. 



To indicate the law of the sun's diurnal intensity to the eye also, I 

 have taken the relative units in the table as ordinates, and their times 

 for abscissas, and traced curves through the series of points thus de- 

 termined, as shown in the accompanying diagram. 



