MEM AOKK

ITS

STATISTICS, TECHNOLOGY AND TRADE

DURING

1905

FOUNDED BY RICHARD p. rothwell

EDITED BY

WALTER RENTON INGALLS

Editor of the Engineering and Mining Journal; Member American Institute of Mining Engineers;
Member Institution of Mining and Metallurgy; Member American

Chemical Society; Member Society of
Chemical Industry, Etc.

VOLUME XIV

SUPPLEMENTING VOLUMES I TO XIII

NEW YORK and LONDON

ENGINEERING AND MINING JOURNAL (Incorporated)