Full text of "Roasting of gold and silver ores : and the extraction of .
The Solving Process, as now practiced, is a very econom- ical method for the . than where other more expensive IV PREFACE. machinery is employed, . It is also one of the most rebellious ores, containing copper, antimony, .. 1 I 11,1111 III II I III' Illl VI 'I Wll.ll I II IN' , I Illlo II ill) .lull-, Mini )|i> W III lir 1 1 Mill) II, ('I I It trifle.