GOLD-SAVING APPARATUS IN NEVADA.

Grey River Argus, Volume IX, Issue 707, 30 July 1870, Page 1 (Supplement)

GOLD-SAVING APPARATUS IN NEVADA.

[SAN FRANCISCO BULLETIN.]

There are two recent inventions being tried in Gras3 Valley, with the end in view to still better save the gold from the tailinga which run off from the stamps of the mill. One of these we witnessed in operation at PerrhVs mill* on Wolf greek , This invention consists of an "application of the grist mill to quartz tailings. The stones are of common granite, the upper one revolving just a3 in a flouring mill. Mons. Chabrol is the inventor. Wet tailings are poured iuto the hole in the middle of the stone and discharged after being finely pulverised— indeed, they are reduced to almost an impalpable powder. Mons. Chabrol's machine at Perrin's mill grinds 20 tons in 24 hours, and does its work well. The wear of the granite used amounts to an expense of about Idol per day. We have no figures, as yet, of the value of the gold saved by this grinding process, but we learn that the remuneration is unexpectedly large.' In the case of the machinery in question, the millings are ground after the sulphurets have been separated, or in other words, it is at work on the sand which is ordinarily allowed to run into the creek. Another grinder of a very diffeaent kiud i 3 at work on the east portion of the town, on sand which came down Wolf creek. This sand is made finer, and is then run over amalgamating machinery. The results so far have been good. These simple machines demonstrate that a large amount of gold has been allowed heretofore to run off with the waters of the creek to be finally deposited in the rivers and valleys below.