Hartley and Ramage — Banded Flame-Spectra of Metals. 



349 



The Flame-Specteum of Palladium.* 

 Bands in the nature of flutings composed of fine lines. 



In the course of this investigation experiments have been made with other 

 elements. The following gave the spectra indicated below, but details are not yet 

 sufficiently complete for publication : — 



Strong Continuous Spectra: Molybdenum, tungsten, osmium. — A continuous 

 spectrum, which is not strong, is rendered by mercury. 



* Wollaston was the discoverer of palladium, and the specimen from which this spectrum was taken 

 was obtained directly from him, by the late Sir Robert Kane, f.k.s., by whom it was presented to W. N. 

 Hartley, on April 25th, 1888. 



