LITERATURE OF THE SPECTROSCOPE. 319 



POTASSIUM. 



Absorptionsspectrum des uberrnangansauren Kalis unci seine Beniitzung 

 bei cliemisch analytischen Arbeiteu. 



Briicke (E.). Sitzungsber. d. Wiener Akad., 74 III, 428; Ohem. 

 Centralblatt, (3) 9, 139-43; Jour. Chem. Soc, 34, 242 (Abs.). 



On the light reflected by potassium permanganate. 



Conroy (Sir J.). Proe. Physical Soc, 2, 340-44; Phil. Mag., (5j 6, 

 454-8; Jour. Chem. Soc, 36, 425 (Abs.). 



Transparence des flammes colorees pour leurs propres radiations ; la 

 double raie du potassium. 



Gouy. Comptes Rendus, 86. 1078. 



Spectrum des Kaliums. 



Jahresber. d. Chemie, 16 -(1863), 112. 



Linien von Kalium. 



Kirchhoflf (G.). Ann. Phys. u. Chem., 110, 173. 



Permanganate de Potasse en solution, absorption. 



Lecoq de Boisbaudran (F.). Spectres Lumineux, Paris, 1874, p. 10S, 

 planche XYI. 



Sulfate de potasse fondu, etincelle; chlorure de potassium dans le gas. 



Lecoq de Boisbaudran (F.). Spectres Lumineux, Paris, 1874, p. 48, 

 planche Y. 



On the spectra of sodium and potassium. 



Liveing (G. D.) and Dewar (J.). Proc Eoyal Soc, 29, 398-402; Bei- 

 blatter, 4, 3G8 (Abs.). 



Sur le chromocyanure de potassium. 



Moissan (H.). Comptes Rendus, 93, 1079-81 ; Chem. News, 45, 22 

 (Abs.); Ber. chem. Ges., 15, 243 (Abs.). 



Absorption spectra of sodium and potassium at low temperatures. 

 Eoscoe (H. E.) and Schuster (A.). Proc. Eoyal Soc, 22, 3G2. 



Modifications of the spectrum of potassium which are effected by the pres- 

 ence of phosphoric acid. 



Thudichum (J. L. "W.). Proc. Eoyal Soc, 30, 278-86. 



