The writer has carried out tests to determine the most feasible method of treating a complex ore from Tecolote, Sonoro [sic], Mexico. The ore contains gold, silver, copper and zinc -- Introductory, page 1
The material to be treated is a zinc ore from Boone County, Arkansas, a district as yet but little d...
The object of this work was to determine methods and design plants best adapted for the estraction s...
Metallurgy of Gold: Problem Required, description of processes and machinery used in Extraction of G...
Many complex ores are found in the West, which contain zinc in large quantities together with lead, ...
The object of this thesis is to work out a commercially successful treatment of an Arizona Gold and ...
The object of this thesis is to work out a commercially successful treatment of an Arizona Gold and ...
The ore to be treated consists of a sulphide carrying some metallic copper --page 1
The ore to be treated consists of a sulphide carrying some metallic copper --page 1
The ore to be treated consists of a sulphide carrying some metallic copper --page 1
The purpose of this thesis is to find a suitable method for extracting the gold and the silver from ...
The purpose in mind, in writing this thesis, is to select the most economical method of treating the...
During the years 1912 to 1915 the writer had charge of the Ruby Copper Company property near Patagon...
During the years 1912 to 1915 the writer had charge of the Ruby Copper Company property near Patagon...
During the years 1912 to 1915 the writer had charge of the Ruby Copper Company property near Patagon...
The metallurgic treatment of an ore for Lead and Silver…. The discussion of which will consist of th...
The material to be treated is a zinc ore from Boone County, Arkansas, a district as yet but little d...
The object of this work was to determine methods and design plants best adapted for the estraction s...
Metallurgy of Gold: Problem Required, description of processes and machinery used in Extraction of G...
Many complex ores are found in the West, which contain zinc in large quantities together with lead, ...
The object of this thesis is to work out a commercially successful treatment of an Arizona Gold and ...
The object of this thesis is to work out a commercially successful treatment of an Arizona Gold and ...
The ore to be treated consists of a sulphide carrying some metallic copper --page 1
The ore to be treated consists of a sulphide carrying some metallic copper --page 1
The ore to be treated consists of a sulphide carrying some metallic copper --page 1
The purpose of this thesis is to find a suitable method for extracting the gold and the silver from ...
The purpose in mind, in writing this thesis, is to select the most economical method of treating the...
During the years 1912 to 1915 the writer had charge of the Ruby Copper Company property near Patagon...
During the years 1912 to 1915 the writer had charge of the Ruby Copper Company property near Patagon...
During the years 1912 to 1915 the writer had charge of the Ruby Copper Company property near Patagon...
The metallurgic treatment of an ore for Lead and Silver…. The discussion of which will consist of th...
The material to be treated is a zinc ore from Boone County, Arkansas, a district as yet but little d...
The object of this work was to determine methods and design plants best adapted for the estraction s...
Metallurgy of Gold: Problem Required, description of processes and machinery used in Extraction of G...