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Excerpt from Coal Resources of District Vi The coal resources of District VI are very great. The original tonnage of coal No. 6 alone is estimated to be tons. Of this only tens, or per cent, have been mined. The amount of coal represented by tons is equivalent to the total production of the United States to the end of 1910. This volume of coal would supply Illinois at the present rat production and with the present proportion of recovery for about years, and the entire United States between 5 and 10 years. N o careful estimate of the amount of coal in the coal beds other than No. 6 has been attempted, but inasmuch as the total tonnage per foot for the entire area is billion it is not improbable that there is nearly as much coal available in the other beds as was originally available in No. 6 seam. 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.