ON WAVE-LENGTH TABLES OF THE SPECTRA OF THE ELEMENTS 75 



Wave-length Tables of the 8])edra of the Elements and Coonpotmds. — 

 Report of the Committee^ consisting of Sir H. E. RoscoE (Chairman'), 

 Dr. Marshall Watts (Secretary), Sir J. N. Lockyer, Professors 

 J. Dewar, G. D. Liveing, A. Schuster, W. N. Hartley, and 

 Wolcott Gibes, and Captain Abney. (Braivn up by Dr. Watts.) 



Cobalt. 



Hasselberg : 'Kongl. Svenska Vetenskaps-Akadem. Handl.,' Bd. 28, No. 6, 1896. 

 Esner and Haschek : ' Sitzber. kaiserl. Akad. Wissensch. Wien,' cv. (2), 189G. 



> 



* Coincident -with a solar line. 



t Solar line double, Co and Mn (Co>Mn). 



J Observed also by Exner and Haschek in the spark spectrum. 



