Hemsalech & de Gramon1\ 



Phil. Ma?. Ser. 6, Yol. 43. PL XX. 



Arc and Spark Spectra of Zinc. 



Spark //nes 



A/a tare 

 or scarce. 



Capacity 

 spark. 



a A 



Water 



on 



5? 





S 



v> 



K 



\ K 



^ 



<\! 



CVj 



«\1 <M 



M 



c> 



^ 



C\J 





o> 



<h 



BJ 



^ 



V> 



vo 



\ 



$> 



^ 



Sh 



^ 



^ 



Ordinary arc. 



Water arc. 



+Zn. 



—Zn. 



+Zn. 



■Zn. 



% 



Spark fines. 



