Excerpt from Second Geological Survey of Pennsylvania, January, 1881: A Special Report to the Legislature Upon the Causes, Kinds and Amount of Waste in Mining AnthraciteThe report explains sufficiently in its wastage chapters why a long continued and careful record at many breakers is needed for correct averages of waste.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.