Mines and Quarries

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Excerpt from Mines and Quarries: Bulletin 9N 0 statistics for employees, wages, or, expenses inci dent to the production of cement, clay, feldspar, ¿int, rutile, borax, or slate ground as a pigment, are given in the report of the Eleventh Census, and the production given in Table 2 for these minerals was taken from the summary of the mineral products of the United States which was apparently prepared in part independently of the regular census work, but which was presented in the introduction to the report.The Eleventh Census did not present statistics of any character for crystalline quartz, fuller's earth, lithium, monazite, tungsten, uranium and vanadium, magnesite, or molybdenum, these minerals not being produced in commercial quantities. Silica sand is generally the product of sandstone quarries, being obtained by crush ing the rock, and was included under the classification of sandstones. Garnet was included under abrasives.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.