The object that the writer has mainly in view in presenting this paper is to draw the attention of those connected with the technical side
The refinery takes the bullion purchased by the receiving department, and carrying more than 200 parts of precious metals in 1,000, or, in mint parlance,
Although three rather extensive researches on the system gold-mercury have been published within the last ten years, the disagreement in the various results is most
It appears from all tests run to date that under otherwise constant conditions, increasing the concentration of a given collector increases R and decreases K
Leach Pad Construction: After the site of this Silver Heap Leaching pad was prepared, a pad base consisting of about 15 inches of mill slimes or a
It is now generally admitted by experts that at least so far as rapid progress is concerned the Alpine system of tunnel-driving is superior to
Ammonite is an iridescent gem formed within an ancient marine fossil for which it was named—ammonite. Originally discovered by the Blackfoot Indians, ammolite is mined only in
Among smelters generally, the prevailing opinion is that in a slag which is either extremely acidic or extremely basic in character there is a greater
Owing to two large falls of ground which resulted in serious accidents occurring towards the end of 1908, it became evident that the “open chamber”
In this paper an attempt is made to describe the sluicing operations on the tin fields of north-eastern Tasmania. No claim is made to completeness,