52 BIBLIOGRAPHY OF ASTRONOMY: 1887. 



Spectra (Stellar). 



CoPELAND (R.) Variability of the spectrum of y Cassiopeiae. Month, net., 



47: 92. 

 EsPiN (T. E.) Sweeping for red stars and stars with remarkable spectra. Obsr}'., 



10: 258. 



Stars with remarkable spectra. Astron. Nachr., 117: 49. 



Maunder (E. W.) & others. [Remarks on Sherman's observations of bright 

 lines in stellar spectra.] Obsry., 10: 51. 



Pickering (E. C.) Henry Draper memorial. First annual report of the photo- 

 graphic study of stellar spectra conducted at the Harvard college observatory. 

 10 p., 1 pi. 4to. Cambridge, 1887. (>!• ■'5 ) 



Sherman (0. T.) Stellar spectra of classes I c and II b. Astron. jour.. 7 : 53. 



Spectra of the new variable in Orion, of certain temporary stars, and of the 



nebulas. Ibid., 65-71. 



Short study upon the atmosphere of /3 Lyrte. Am. j. sc, 133 ; 126-129. 



Spektroskopische Beobachtung der Sterne bis zur 7.5 Gr. zwischen 0° und — 15" 

 Deklination auf der Sternwarte zu O'Gyalla. Sirius, 20 : 252-255. 



Stars with remarkable spectra, il. Nature, 86 : 461. 

 Spectroscope. 



HuTCHiNS (C. C.) A new photographic spectroscope. Am. j. sc, 134 : 58. 

 Spectrum analysis. See, also, Light. 



GrIJnwald (A.) tjber die merkwiirdigen Beziehungen zwischen dem Spektrum 

 des Wasserdampfes und den Linienspectren des Wasserstoffs und Sauerstotfs, 

 sowie viber die chemische Struktur der beiden letztern und ihre Dissociation 

 in der Sonnenatmosphare. Astron. Nachr., 117: 201-214. Also, transl.: 

 Phil, mag., 5. s. 24 : 354-367. 



VON KOvesligethy (R.) Mathematische Spektralanalyse. Abstr.: Astron. 

 Nachr., 117: 329-338. 



Sherman (O. T.) A continuous spectrum from hydrogen. Astron. jour., 7: 95. 



Spectrum (Solar). See, also, Spectrum analysis. 



Abney (W. de W.) Solar spectrum from ;, 7150 to / 10000. Phil, trans, my. 



soc, 177 : 457-469. J^so, Reprint. (M. 3.30.) 



HuTCHiNs (C. C.) & HoLDEN (E. L.) Existence of certain elements, together 



with the discovery of platinum in the sun. Am. j. sc, 134 : 451-456. 

 Mengarini (G.) II massimo d'intensita luminosa dello spettro solare. Atti d. 



r. accad. d. Lincei, s. 4. Rendic, 3 : 482-489. 

 Pickering (E. C.) [Device for detecting atmospheric lines in the solar spec- 

 trum.] Science, 9 : 13. 

 Rowland (H. A.) Relative wave-length of the lines of the solar spectrum. 



Am. j. sc, 133 : 182-190. 

 Trowbridge (J.) & Hutchins (C. C.) Existence of carbon in the sun. Am. 



j. sc, 134: 345-348. Also: Phil, mag., 5.s. 24: 310-313. 

 Oxygen in the sun. Am. j. sc, 134: 203-270. Also: Phil, mag., 5. s. 



24: 302-310. 



