LITERATURE^DF THE SPECTROSCOPE. 195 



CHROMIUM. 



On the colour properties and relations of chromium. 

 Baylor (T.). Jour. Chem. Soc, 37, 828-3G. 



The chromium arc spectrum, photographed. 



Capron (J. R.). Photographed Spectra, London, 1877, p. 26 



On the optical properties of a new chromic oxalate. 



Hartley (W. 1ST.). Proc. Royal Soc, 21, 499-507 ; Ber. chem. Ges.. 6, 

 1425 (Abs.). 



Distribution of heat in green oxide of chromium. 



Jacques ("W. W.). Proc. American Acad., 14, 142. 



Sesquichlorure de chrome en solution, etincelle. 



Lecoq de Boisbaudran (P.). Spectres Lumineux, Paris, 1874, p. 106, 

 planche XVI. 



Absorptionsspectra der Alkalichromate und der Chromsiiure. 

 Sabatier (P.). Beiblatter, 11, 223. 



