Excerpt from Production of Temperature Uniformity in an Electric Furnace Day and Sosman state that the deviations within the central 24 cm of their furnaces III and IV amounted to 5 at increas ing steadily to about 20 at 700 and reaching about 50 at While the thick-walled iron tube used in these latter trials pro duced markedly better results than the porcelain tube used in the earlier ones, still it is quite clear that even the conductivity of the iron was very far from adequate to secure uniformity, espe cially at temperatures much removed from the one at which a particular distribution of the heating coils gave the best results. 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.