Excerpt from The Collected Writings of Hermann August Seger, Vol. 1 In arranging the writings, literal reproduction of the vari ous essays was always aimed at, and they were sifted only where repetitions were met. It is our hope that by publishing The Collected Writings of Hermann August Seger, which we have attempted to arrange according to the different branches of the clay industry, we have served not only German technology and research, but have also erected a monument to our late teacher and friend taken away from us so soon. The work is published under the auspices of the German Society for the Manufacture of Brick, Clay Wares, Lime and Cement, of the Union of the Ceramic Industries of Germany, and the Association of German Manufacturers of Refractory Products. 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.