ATOMIC WEIGHTS 



97 



I. 



3.29308 

 3.70132 

 3.75641 

 3.24954 

 4.12541 

 3.53166 

 2.99835 

 2.00015 



Ag. 

 2.79897 

 3.14584 

 3.19258 

 2.76186 

 3.50639 

 3.00165 

 2.54842 

 1.69991 



In a final series of experiments, based upon the silver used in the 

 preceding set, the ratio Ag : Agl was redetermined, as follows : 



.0012 



The determinations of the silver-iodine ratio by Gallo/ although numer- 

 ous, are not as concordant as the foregoing series. Silver was deposited 

 electrolytically, and in the same circuit iodine was liberated from a 

 solution of potassium iodide, and determined afterwards by thiosulphate 

 titration. With vacuum weights the results obtained are as follows : 



^\tti Accad. Lincei (5), 15, 24. 1906. Gazz. Chim. Ital., 3G, 116. 



