Download or read book Lake Superior Iron Ore Production for the Past Thirty six Years written by and published by . This book was released on 1892 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Iron Ores of Lake Superior written by Crowell & Murray and published by . This book was released on 1914 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Combination in the Mining Industry written by Henry Raymond Mussey and published by New York : The Columbia University Press, the Macmillan Company, agents. This book was released on 1905 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Lake Superior Iron Ore Annual written by and published by . This book was released on 1913 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Iron Ores of Lake Superior written by Crowell & Murray and published by . This book was released on 1911 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Lake Superior Iron Ore Mines written by Jeremiah Head and published by . This book was released on 1899 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Lake Superior Iron ore Region U S A written by Horace Vaughn Winchell and published by . This book was released on 1897 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Iron Ores of Lake Superior written by Crowell & Murray and published by . This book was released on 1927 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Future of the Lake Superior District as an Iron Ore Producer Classic Reprint written by Edward W. Davis and published by Forgotten Books. This book was released on 2017-10-29 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Future of the Lake Superior District as an Iron-Ore Producer It is, of course, recognized by everyone, that at some future date all of the merchantable ore will have been removed from the district. This date is placed by various estimators at from 15 to 30 years hence. This statement is based on the assumption that the present rate of shipment will continue until the end of the season of the last year. This, of course, can not be the case. The history of any successful mining district shows that during the first few years of life small tonnages of high - grade material are mined. As time passes and a district is more largely exploited, the tonnage mined each year increases. As the tonnage increases, the grade of the ore usually becomes lower. After a certain time, the yearly production of the district reaches a maximum and after the maximum is passed, the production gradually decreases. The rate of decrease in production is quite rapid at first, but absolute depletion of the district may not occur ior a great many years. The history of the Lake Superior district will, undoubtedly, follow in a general way the history of most mining districts, and it is to be expected that some day, past or future, the district has reached, or will reach, the peak of its production. After the peak is passed, and it becomes generally recognized that the district is on a de cline, the descent toward absolute depletion will be quite rapid. 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.
Download or read book Lake Superior Iron Ore Annual written by and published by . This book was released on 1913 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Combination in the Mining Industry written by Henry Raymond Mussey and published by New York : AMS Press. This book was released on 1968 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lake Superior Iron Ores written by Lake Superior Iron Ore Association and published by Cleveland : Lake Superior Iron Ore Association. This book was released on 1952 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Journal of the Iron and Steel Institute written by Iron and Steel Institute and published by . This book was released on 1893 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes sect. "A survey of literature on the manufacture and properties of iron and steel, and kindred subjects" (title varies)
Download or read book Combination in the Mining Industry written by Henry Raymond Mussey and published by . This book was released on 1968 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Exhibit of the Condition and Prospects of the Lake Superior Iron Company June 1853 written by Lake Superior Iron Company and published by . This book was released on 1853 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Iron Ores of Lake Superior written by Crowell Murray and published by Forgotten Books. This book was released on 2017-10-12 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Iron Ores of Lake Superior: Containing Some Facts of Interest Relating to Mining and Shipping of the Ore and Location of Principal Mines This issue of our book, like the two previous editions, is presented with the belief that the information which we have compiled from various sources will be of interest to the miners and users of Lake Superior ore. 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.
Download or read book Hurd s Iron Ore Manual written by Rukard Hurd and published by . This book was released on 1911 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
