SUPPLEMENT. 



413 



Jahresber. d. Chemie 



1881), 117, use of Vierordt's double slit in spec- 

 troscopic analysis, by W. Dietrich. 



1881), 117, spectrophotometer, by A. Crova. 



1881), 117, phosphorography of the solar spectrum 

 and the ultra-red lines, by J. W. Draper. 



1881), 118, inversion of spectrum lines, by G. D. 

 Liveing and J. Dewar. 



1881), 118, disappearance of spectrum lines, by 



Ch. Fievez. 

 1881), 119, coincidence of spectrum lines of various 



elements, by G. D. Liveing and J. Dewar. 

 1881), 119, spectrum of oxygen, by A. Paalzow 



and H. TV. Vogel. 



1881), 120, spectra of hydrogen and of sulphur, 

 by B. Hasselberg. 



1881), 120, spectrum of arsenic, by O. TV. Hunt- 

 ington. 



1881), 121, spectra of sodium and calcium, by 



Abney. 

 1881), 121, relative intensity of the sodium lines 



D a and Dp, by TV. Dietrich. 

 1881), 121, spectrum of magnesium, by G. D. 



Liveing and J. Dewar. 

 1881), 122, spectra of magnesium, sodium, copper, 



baryum, and iron in their harmonic relations, 



by A. Schuster. 

 1881), 122, spectrum of iron, by J. N. Lockyer. 

 1881), 122, 123, spectra of the carbon compounds, 



by E. TVesendonck ; remarks by A. TVullner, 



claiming priority. 



1881), 123, spectroscopic lines of the arc of Jamin's 

 lamp, by Thollon. 



1881), 123, spectrum of carbonic acid, by C. 

 TVesendonck. 



1881), 123, 124, spectrum of acetylene, by A. 

 TVullner. 



1881), 125, color of water, by F. Boas. 

 1881), 125, absorption of the solar rays in the at- 

 mosphere, by E. Lecher. 



