The object of the present paper is to call attention briefly to a novel method of analyzing the action of the ordinary gravity stamp, which
The latest revised edition of Mr. C. A. Stetefeldt’s book on the Lixiviation of Silver-Ores, which appeared very recently, contains no mention of the volatilization
The use of steam-stamps in the crushing of ore for the purpose of amalgamation has been very limited, and little has been written on the
A great deal has been written of late regarding the loss of silver in assaying; very discordant results have been published by different writers, and much
In “ Sorting Before Sizing ” (a paper first announced at the Pittsburgh meeting, but delayed in preparation and now presented at the present meeting)
Some months since, the attention of the author was directed to certain statements to the effect that the gold-contents of foul or extremely dilute cyanide-solutions
It is obvious that the choice of the method to be employed in the handling of blast-furnace slags and mattes depends upon local facilities and
The analysis of refined copper is a subject of great importance, and has not received the attention it deserves. Copper metallurgists, therefore, will welcome the
Determination of Arsenic and Antimony Together: Instead of separating arsenic from antimony in the hydrochloric-tartaric acid solution which was finally obtained, dilute the solution to four
The improvement in leaching introduced by the Russell process has stimulated the development of processes for refining lixiviation-sulphides. In the early days several processes for