The Coal Resources Of The World, Vol. 3. An Inquiry Made Upon The Initiative Of The Executive Committee Of The XII International Geological Congress, Canada, 1913; With The Assistance Of Geological Surveys And Mining Geologists Of Different Countries 12+

📖 Excerpt from The Coal Resources Of The World, Vol. 3: An Inquiry Made Upon The Initiative Of The Executive Committee Of The XII International Geological Congress, Canada, 1913; With The Assistance Of Geological Surveys And Mining Geologists Of Different CountriesIn Jutland, only a few small mining experiments have been undertaken, and a few experimental borings made to no great depth; one boring has been carried down to 78 m., but 111 most cases of boring for coal the depth reached has not been greater than 20 - 30 m. From the surface.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.