Excerpt from Canadian Chemical and Metallurgy, 1923, Vol. 7: Formerly "Canadian Chemical Journal" Established 1917, Containing Official Announcements of the Canadian Institute of Chemistry Manufacturing progress. Will be retarded. And the quality Of your product impaired - ii you Just guess that temperatures are thus and so. 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.