8 CuS0,5H,0 



9 Zn(CH3C00)o 

 1 Ce,(SO,)38H20 



•2 AL(S0,)3lSH,0 



3 CroiSOJglSH.O 



1 ZrCl, 



2 Th(N03),4H.O 



Mean 



1500 



The Coagulation of A rseniuns Sulphide Sol by Cobaltic Complexes 



1 BaCl,2H,0 



2 NiS0,7H,,0 

 8 Sr(N03)2 



4 CaCL 



5 Co CI, OH., 



6 FeSOjn'o 



7 ZnS0,7H.,0 



5000 



11 



15000 



10 



5000 



1 

 1071 

 1-6 



30000 



1 

 30000 



1 



10000 



1 



24000 



2 J 0000 

 Fig. 3 was drawij in tlie same manner as the Fig. 2 was graphed. 



