126 



PROCEEDINGS OF THE AMERICAN ACADEMY. 



and great care was taken to prevent the loss of any of the precipitate. 

 The results of this determiiiatiou of the amount of silver required to 

 precipitate the bromine in cobaltous bromide are given in the table 

 headed " Third Series " below. The " Second Series " of results was 

 obtained by weighing the argentic bromide precipitated in the manner 

 just described. Before filtering, a slight excess of argentic nitrate was 



THE ATOMIC WEIGHT OF COBALT. 



0= 16.000; Ag= 107.93. 



FiKST Series (Preliminary). 2 AgBr : CoBrj. 



