Download or read book Twelfth Biennial Report of the Bureau of Mines of the State of Colorado written by T. R. Henahen and published by Forgotten Books. This book was released on 2017-10-27 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Twelfth Biennial Report of the Bureau of Mines of the State of Colorado: For the Years 1911 and 1912 Sir: AS provided for in section 4268 Revised Statutes Of 1908, relating to Bureau Of Mines - Mine Regulations, I have the honor of submitting to you herewith the twelfth biennial report Of this department. 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.