ON WAYE-LENGTH TABLES OF THE SPECTRA OF THE ELEMENTS. 16l 



Report of the Committee, consisting of Sir H. E. EoscoE, INIr. J. N. 

 LocKYER, Professors Dewar, Wolcott Gibbs, Liveing, Schuster, 

 aoul W. N. Hartley, Captain Abney, and Dr. Marshall Watts 

 (Secretary), appointed to prepare a neio series of Wave-length 

 Tables of the Spectra of the Elements and Compounds. 



Iron (Arc Spectrum).^ 



(•f- denotes one of Rowland's ' normal ' lines, or one of MuUer and Kempf ' 300 ' 

 lines, as the case may be). 



' Kayser and Kunge (Berlin, 1888) ; Thal6n (Upsala, 1884) ; Milller and Kempf 

 (Potsdam, 1886). 



1891. H 



