LITERATURE OF THE SPECTROSCOPE. 75 



Ueber die Spectra der Corneten b und c, 1881. 



Vogel (H. C). Astronom. Nach., 100, 301-4; Beiblatter, 5, 867 



(Abs.). 



Observations de la comete b, 1881. 



Wolf (C). Comptes Rendus, 93, 36. 



Spectroscopic observations upon the comet b, 1881. 



Young (C. A.). Amer. J. Sci.. (3) 22, 135-7; Beiblatter, 5, 663-4 

 (Abs.). 



Comet c, 1881. 



Note on the spectrum of comet c, 1881, as seen with a Browning's minia- 

 ture spectroscope on the 4£ telescope. 



Backbouse (T. W.). Monthly Notices Astronom. Soc, 42, 43. 



Note on photographs of the spectrum of the comet of June, 1881. 



Draper (H.). Amer. Jour. Sci., (3) 22, 134-5 ; Chem. News, 44, 75-6 ; 

 Mem. Spettr. ital., 10, 150-1 ; Jour, de Phys., (2) 1, 153 (Abs.). 



Spectra of comets b and c, 1881. 



Greenwich Observatory, Monthly Notices Astronom. Soc, 42, 14-19. 



Spectroscopische Beobachtungen der Cometen b und c, 1881. 

 Hasselberg (H.). Bull. Acad. St. Petersburg, 27, 417-25. 



Spectroscopische Beobachtungen der Cometen b und c, 1881, angestellt 

 am astrophysikalischen Observatorium in O'Gyalla (Ungarn). 

 Konkoly (N. von). Naturforscher, 14, 321, 323, 331. 



Etudes spectroscopiques sur les cometes b et c, 1881. 

 Thollon (L.). Comptes Rendu?, 93, 383. 



Ueber die Spectra der Cometen b und c, 1881. 



Vogel (H. C). Astronomische Nadir.* 100, 301-4 ; Beiblatter, 5, 



867. 



Spectrum of Schaeberle's Comet. 



Capron (J. R.). Nature, 24, 430-1. 



(See also Tacchini, in Comptes Rendus, 93, 261.) 



Telbutt's Comet, origination of its proper light. 

 Smyth (C. Piazzi). Nature, 24, 430. 



Comet a, 1882 ( Wells's). 



Spectrum of comet a, 1882 (Wells's). 



Backhouse (T. W.). Nature, 26, 56 ; Beiblatter, 6, 678. 



