436 



REPORT 1884. 



Platinum. 



* Observed also by Lecoq do Boisbaudran in the Spark Spectrum of Platinum Chloride solution;, 

 together with the following lines ;— U75T. G319, 6->19, 5758. 4999, 4659, 4415, 4194, 4165, 4118. 

 t Double. 



Lockyer has observed the following lines in the Arc Spectrum of Platinum 

 between the wavelengths 3900 and 4000 :— 39959, 3979-7, 39651, 39525, 3947-3, 

 3921-1, 3922-0, 3910-2, 39058, 3903-7, 39030, 3900-2. 



Potassium. 



• i ibserved also by Salet. 



