On the Arc Spectrum of Iron Meteorites. 

 FIG. 3. 



Sb. 



139 



3ction was reversed according as lead or bismuth was present, viz., 

 >wnwards to the left in the first case, and to the right in the 



, " On the Photographic Arc Spectrum of Iron Meteorites." 

 By Professor J. NORMAN LOCKYER, C.B., F.R.S. Received 

 December 22, 1893. 



(Abstract.) 



This communication consists of a discussion of the photographic 

 spectra of the NVjed and Obernkirchen meteorites, the wave- 



gths of the lines being based upon those determined by means of 

 e photographic arc spectrum of electrolytic iron, a paper concerning 

 dch has been recently communicated to the Society. The portion 



the spectrum covered by the photographs extends from K to D. 



