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Jan 1, 1896

Jan 1, 1911

Jan 1, 1947

By AIME

[Fig. 1], at left, is a corrected version of the first figure of the paper. Please note corrections in labeling of deposits.

Jan 1, 1973

Jan 1, 1932

Jan 1, 1935

Jan 1, 1952

The following list contains the names of members of whose deaths notices have be received at the Secretary's office between Jan. 1, 1935, and April 1, 1936. Bio¬graphical sketches published in MINING AND METALLURGY are indicated in the last two columns.

Jan 1, 1936

By Charles A. Schaeffer

IN the early part of last year I received a small amount of powdered mineral from Williamson County, Texas, to be examined for silver. The specimen proved to be limestone, slightly colored

Jan 1, 1883

For the year ending February, 1919 PRESIDENT SIDNEY J. JENNINGS NEW YORK, N. Y. PAST PRESIDENTS L. D. RICKETTS, NEW YORK, N. Y. PHILIP N. MOORE ST. Louis, Mo. FIRST VICE-PRESIDENT C. W. GOODALE, BUTTE, MONT. TREASURER GEORGE C. STONE, NEW YORK, N. Y. SECRETARY EMERITUS ROSSITER W. RAYMOND, NEW YORK, N. Y. SECRETARY BRADLEY STOUGHTON NEW YORK, N. Y.

Jan 11, 1918

For the year ending February, 1918 PRESIDENT PHILIP N. MOORE, ST. Louis, Mo. PAST 'PRESIDENTS WILLIAM L. SAUNDERS NEW YORK,. N. Y. L. D. RICKETTS NEW YORK, N. Y. FIRST VICE-PRESIDENT SIDNEY J. JENNINGS NEW YORK, N. Y. TREASURER GEORGE C. STONE, NEW YORK, N. Y. SECRETARY EMERITUS ROSSITER W. RAYMOND, _ NEW YORK, N. Y. SECRETARY BRADLEY STOUGHTON NEW YORK, N. Y.

Jan 11, 1917

A Progress Report of The Engineering Foundation, which is a history of the Foundation and a report of its activities, has been printed. A limited number may be obtained by members of the Institute by writing to the office of the Institute or to the Secretary of the Foundation.

Jan 11, 1919

CENTRAL EMERGENCY COMMITTEE Chairman, MRS. H. N. SPICER As no further requisition will be Made for knitted garments, for the boys of the 27th Engineers, all completed garments and wool have been collected and returned to Mr. W. R. Ingalls, and the activities of the

Jan 12, 1918

Jan 1, 1969

For the year ending February, 1918 PRESIDENT PHILIP N. MOORE ST. Louis, Mo. PAST PRESIDENTS WILLIAM L. SAUNDERS NEW YORK, N. Y. L. D. RICKETTS NEW YORK, N. Y. FIRST VICE-PRESIDENT SIDNEY J. JENNINGS NEW YORK, N. Y. TREASURER GEORGE C. STONE, NEW YORK, N. Y. SECRETARY EMERITUS ROSSITER W. RAYMOND, NEW YORK, N. Y. SECRETARY BRADLEY STOUGHTON, NEW YORK, N. Y.

Jan 5, 1917

E. D. WILLIAMSON,* Washington, D. C. (written discussion?).-The paper is interesting and suggestive and the work described should he carried to completion, as it presents points of interest quite apart from the immediate application in glass manufacture. It ought to help, for instance, in throwing light on the chemical nature of glasses and on all questions of viscous flow.

Jan 11, 1919

Those in charge of the Second Pan-American Financial Conference say that the engineering profession will be well represented at the Janu-ary conference in Washington. Latin American engineers are more closely connected with important industrial projects and have a greater command in matters pertaining to the developments on which they are working than is the case in the United States. Our own engineering profession may. therefore do well to study the Latin-American plan of cooperation between capital and the engineers.

Jan 11, 1919

By John A. Von Essen

To some, the paddle mixer may seem old as antiquity. Yet, as industrial mixing requirements become increasingly sophisticated in the late 20th century, it is proving more useful and versatile than ever. From water treatment applications to high-pressure reactors, the new and specialized demands in mixing have been met by a continuous evolution and adaptation of this basic workhorse design.

Jan 7, 1978

By Clement K. Chase, F. Milton Lewis, Roshan B. Bhappu

In this paper an attempt has been made to review the cost trends in producing copper by conventional milling, smelting and hydrometallurgical means during the last five years. The primary objectives of this cost analysis are to provide a base for future projections as well as to indicate which cost items are more volatile in their influence on overall cost of producing copper.

Jan 1, 1979

CONTRARY to the natural order of art, it has been discovered how to cast in moist earth in order to avoid labor and expense. This is truly a thing that many desire and few practice because it is not as smooth a way nor as easy to effect as it apparently seems. To do this, one part of fine-grained yellow tuff is taken, or some very

Jan 1, 1942