Excerpt from Transactions of the American Institute of Mining Engineers, Vol. 53: Containing the Papers and Discussions on Iron and Steel and Allied Subjects Presented at the San Francisco Meeting, September, 1915 and the New York Meeting, February, 1916 Conversion Scale for Centigrade and Fahrenheit Temperatures. By hugh P tiemann (with Discussion) The Control of Chill in Cast Iron. Considering the Elements Effective in the Manufacture of Malleable Castings and Chilled Car Wheels: By grafton M. Thrasher (with Discussion) 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.