172 Table i 52 (.(t>n(inue<I). 



STANDARD SOLAR WAVE-LENGTHS. ROWLAND'S VALUES. 



Corrections to reduce Rowland's wave-lengths to Fabry and Buisson's system (the accepted standard, 1908). Tem- 

 perature 15° C, pressure 760 mm. 



Wave-length 3600, 370a 3800, 3900. 4000. 4100. 4200. 430°. 4400. 4500. 4600, 4700. 4800. 

 Correction — .155 — .140 — .141 — .144 —.148 — .15* — .156 —.161 — .167 — .17a — .176 — .179 — .179. 



Smithsonian Tables. 



