1-4 of 4 Books
Calcium sulfide precipitation of mercury from gold-silver-cyanide leach slurries
Calcium sulfide precipitation of mercury from gold-silver-cyanide leach slurries
By W. W. Simpson
Calcium sulfide precipitation of mercury during cyanide leaching of gold ores
Calcium sulfide precipitation of mercury during cyanide leaching of gold ores
By R. G. Sandberg
Growth and decay of phosphorescence in calcium sulphide by a photoelectric method
Growth and decay of phosphorescence in calcium sulphide by a photoelectric method
By Peter John Mulder

A Text book of alkaloidal practice
By William Francis Waugh ,Wallace C. Abbott