Table 321 (.continued). 273 



STANDARD SOLAR WAVE-LENGTHS. ROWLAND'S VALUES. 



Corrections to reduce Rowland's wave-lengths to standards of Table 314 (the accepted standards, 1913). Temperature 

 15° C, pressure 760 tnm. : 



Wave-length 360a 3700. 3800. 3900. 

 Correction — .155 — .140 — .141 — .144 



Smithsonian Tables. 



4000. 4100. 4200. 4300. 4400. 4500. 4600. 4700. 4800. 

 — 148 —.158 — .156 —.161 — 167 — 171 — .176 '-.179 — .179, 



