I J A ' Table t 63 {eonUnued). j 



STANDARD SOLAR WAVE-LENGTHS. ROWLAND'S VALUES. 



Corrections to reduce Rowland's wave-lengths to standards of Table i6o (the accepted standards, 1013). Temperature 

 15° C, pressure 760 mm. : 



Wave-length 3600. 3700. 

 Correction — .155 — .140 



Smithsonian Tables. 



3800. 3900. 4000. 4100. 4200. 4300. 4400. 

 -.141 — .144 — 148 — ,152 —.156 — .161 — 167 



4500. 4600. 4700. 

 -.172 —.176 —.179 



4800. 

 -.179. 



