AND DISCUSSIONS PRESENTED AT THE COLORADO MEETING, SEPTEMBER, 1918, AT THE MILWAUKEE MEETING, NEW YORK, N. Y. PUBLISHED BY THE INSTITUTE AT THE OFFICE OF THE SECRETARY 29 WEST 39TH STREET 1919 524257 COPYRIGHT, 1919, BY THE AMERICAN INSTITUTE OF MINING AND METALLURGICAL ENGINEERS THE MAPLE PRESS YORK PA PREFACE This volume contains the papers and discussions on non-ferrous metallurgy industrial management and kindred subjects that were presented at the Colorado and Milwaukee meetings in the Fall of 1918, and at the New York meeting in February, 1919. These papers were printed in Bulletins 135 to 146 inclusive, but Vol. LX does not completely supersede any Bulletin. Reports of the Proceedings of the Colorado and Milwaukee meetings are also printed in this volume. |