Book Description

Excerpt from Gold Mining Districts, With Plans and Sections Hence we need not be surprised at: finding alannlanco ot' globules of mercury in the tailings of some of our mills when we witness the mode of introducing mercury. Assuming that the average yield of gold in auv parcel of quartz is one ounce to the ten, and that in a battery containing live stampers, live tons of ore are crushed in twenty-four hours, the total quan tity of mercury which should be added according to the lore going directions is six ounces, allowing one ounce and one fifth per ton. This quantity should be distributed at the rate of one quarter of an ounce per hour, or about one-twelfth of a tea spoon at a time. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.