1887.] Res ear cites on the Spectra of Meteorites. 



119 



B. Experiments upon the Luminous Phenomena of the various Metals 

 volatilised in the Bunsen Burner and the Oxy-coal-gas Blowpipe 

 Flame as compared with the Phenomena seen at higher Tempera- 

 tures. 



The main conclusions are that certain lines, bands, and flutings are 

 seen in the bunsen burner, that a larger number is seen in the flame, 

 and that the total number seen in the burner and flame is small. 



The order of visibility in the bunsen is, roughly — 



Lines 



Bands .... 

 Flutings . . 



fMg 

 Na 

 Li 

 Tl 

 Sr 

 Ba 

 Ga 

 K 

 Mn 

 Bi 

 "Ca 

 Sr 

 Ba 

 Mg 

 Mn 



All the observations both of bunsen and oxyhydrogen flame may 

 be condensed as follows : — 



In metals of the alkalies Na 



K 

 Li 



„ alkaline earths Ca 



Sr ... 

 Ba 



In magnesian metals Mg 



Zn 

 Cd 



In iron metals Fe 



m 



Co 



Mn 



Cr 



In metals which yield acids Bi 



Ti 

 W 



In copper metals Cu 



Tl 



In noble metals Ag 



Hg 



In earthy metals Ce 



The following table shows the positions of the principal lines, bands, 

 and flutings seen in the spectrum of each of the metals examined, 

 arranged roughly in the order of their intensities. 



It should here be stated that as some of the researches have had io 



VOL. XLIII. K 



