Report Of The Bureau Of Mines Mining And Mine Inspection PDF Download

Excerpt from 22nd Annual Report of the Bureau of Mines, Mining and Mine Inspection of the State of Missouri: For the Year Ending December 31, 1908 The introduction of automatic power shovels in the mines of the Southwest district is still an' experiment. The first of these steam shovels was installed by the American Zinc, Lead and Smelting Com pany. The desire to increase the output, and the scarcity of American born mine laborers has induced the trial of the power shovel. The substitution of the steam shovel for hand shovelers will, however, depend upon its adaptability in underground work in this section, and the possibility of increasing the output. 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.