Excerpt from Cost Reports of the Federal Trade Commission: Coal Number and extent of operations covered Classification of producers by number of mines operated Classification of producers by size of output The 1918 costs and sales realizations shown by districts Relation of the costs to the sales realizations Comparison of claimed and revised costs 1918 costs shown by thickness of seam mined.. Part III. Comparative costs and sales realizations, August, 1917 December, 1918. 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.