SEPARATION OF METALS INTO DIFFERENT GROUPS. 385 



White. 



Black. 



3^^., 2 



l> 



S ^&1 

 %?** 



- 



C CTQ 



3 



8 S- 



IS 



g-l 



p, 



^ 



pi 



*.' o 



1 1 



2. as O 

 "2. B & 



.o S' 



*B* 



