BAXTER AND COFFIN. — ANALYSIS OF SILVER ARSENATE. 193 



SERIES II. 



3 AgCl 



Ag 3 As0 4 . 



No. 

 of 

 Anal- 

 ysis. 



6 



7 



Sample 



of 

 Ag 3 As0 4 



C 



D 



Corrected 

 W'ght of 

 Ag 3 As0 4 



in 

 Vacuum. 



grams. 

 4.59149 



3.38270 



Ratio 

 3AgCl : 

 Ag 3 As0 4 . 



0.929537 

 0.929542 



Average 0.929540 



Average of all analyses in Series I and II 0.929550 



Per cent of Ag in Ag 3 As0 4 69.9609 12 



SERIES III. 



12 Ag : AgCl = 0.752632 : 1.000000. Richards and Wells, Pub. Car. 

 Inst., No. 28 (1905). 



13 Ag : AgBr = 0.574453 : 1.000000. Baxter, These Proceedings, 42, 

 201 (1906). 



VOL. XLIV. — 13 



