Evershed. 
Phil. Trans., A, vol. 197, Plate 10. 
ig-1- 
ig. 2. 
ig. 3 
Spuctnun Xo. 1. 
Ai-tiHri:il cusp. 
Spectrum X^u. U. 
Comparison lietweeii cusp spectra jjliotographcl during the s(.)lar eclij)se, and artificial cus[) photograjilied in 
ordinary daylight—to show the relative faintness of the Fraunhofer lines in the eclipse spectra, and tlie gi'eat 
cxteiisiou of the latter in the ultra-violet. (The ahseuce of lines hetween F’ and 11 in each spectmm is due to 
over-exposure.) 
