LITERATURE OF THE SPECTROSCOPE. 171 



EBONITE. 



On the transmission of radiation of low refrangibility through ebonite. 



Abney (W. de W.) and Festing (Pv.). Proc. Physical Soc, 4, 256-9; 

 Phil. Mag., (5) 11, 4G6-9 ; Chem. News, 43, 175 (Abs.); Beiblatter, 

 5, 506 (Abs.). 



Note on the index of refraction of ebonite. 



Ayrton (W. E.) and Perry (J.). Proc. Physical Soc, 4, 345-8; Phil. 

 Mag., (5) 12, 196-9; Nature, 23, 519; Beiblatter, 5, 741 (Abs.). 



Photographic action of eosin. 



Waterhouse (J.). Photographic Journal, 16, 135-6 ; Jour. Chem. Soc, 

 1876, 2, 232 (Abs.). 



ETHER VAPOUR. 



Spectrum or ether vapour. 



Capron (J. E.). Photographed Spectra, London, 1877, p. 74. 



EXCREMENTS. 



Swei pathologische Harnfarbstoffe. 



Baumstark (F.). Pfluger's Arch. f. Physiol., 9, 568-84; Jour. Chem. 

 Soc, (2) 13, 480 (Abs.). 



Ueber das Urorosein, einen neuen Harnfarstoff. 



Nencki (M.) und Sieber (N ). Jour, prackt. Chemie, 26, 333-G ; Chem. 

 News, 42, 12 (Abs.); Jour. Chem. Soc, 44, 101 (Abs.); Ber. chem. 

 Ges., 15, 3087. 



Ueber einen neuen krystallinischen farbigen Harnbestantheil. 



Plosz (P.). Zeitschr. physiol. Chemie, 6, 504-7; Ber. chem. Ges., 15, 

 2626-7 (Abs.). 



Ueber einige Chromogene des Hams und deren Derivate. 



Plosz (P.). Zeitschr. physiol. Chemie, 8, 85-94; Ber. chem. Ges., 16, 

 2933-4 (Abs.). 



EAST REI 



Spectrum of fast red. 



Hartley (W. N.). Jour. Chem. Soc, 51 (1887), 197. 



Spectrum of fish pigment. 



Francis (G.). Nature, 13, 1G7. 



