32 Gooch and Fairbanks—Halogens in Mined Silver Salts. 
Many of the experiments recorded in the following table were - 
completed within seven hours with a current not exceeding 0°5 
ainperes : 
AgCl AgBr AglI Ag Ag 
taken. taken. taken. calculated. found. Error. 
orm. orm. orm, erm. erm. erm. 
0°4779 Rie 2 che = 0°3596 0°3591 0:0005 — 
0°6096 as ae ae 0°4588 0°4591 0°0003 + 
0°6774 Be hoe epee SS 0°5098 0°5099 0'0001 + 
See 0°9969 aga hs OD 720 0°5726 0:0001 — 
Bens 1°3703 Et Sie 0°7872 0°7875 0°0003 + 
A aes eStore 1°0613 0°4878 0°4877 0°0001 — 
tes 2 ERP: IOC 2 0°4882 0°4875 0:0007 — 
LGR: eee ote 1°0140 0°4661 0°4662 0:0001 + 
aa pees 1°2012 0°5521 0°5530 0:0009 + 
seg ett 15031 0°6910 0°6914 0°0004 + 
0°5085 0°4984 Pr eae 0°66538 0°6653 0°0000 
1°0020 0'9998 ees 1°3285 18283 § 0:0002— 
0°4939 : 0°6561 0°6784 0°6733 0°0001— 
Bye 0°5000 0°5304 0°5310 0°5316 0°0006 + 
These results show that the process affords an accurate 
reduction of the chloride, bromide, and iodide of silver and 
mixtures of these salts. When the problem concerns the 
reduction of the chloride and bromide only, we give the 
preference to the reduction in alcoholic oxalic acid as being the 
simpler process. The latter process we have also applied sue- 
cessfully on a larger scale to the recovery of the silver in 
chloride residues. 
