Page:The New International Encyclopædia 1st ed. v. 18.djvu/495

* SPECTRUM E 1. I" ■SP 2; c ^^H|i'i{ ill. ..■::,. ■^':. II 1 ' '^iHH (• H- ■i^ll HH^B BHH^B ■^■■H SPECTRA OF THE FIXED STARS AND NEBULAE COMPARED WITH THE SUN-SPECTRUM AND OTHER SPECTRA