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Jan 1, 1903

United Engineering Trustees, Inc. W. D. B. HOTTER, JR., '44 A. L. QUENEAU, '45 ALBERT ROBERTS, '43 The Engineering Foundation GEORGE D. BARRON, '44 F. F. COLCORD, '46 A. L. QUENEAU, '45

Jan 1, 1942

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C. 0. FAIRCHILD, Washington, D. C. (written discussion*).-Referring to the paragraph entitled "Effect of change in temperature of absorbing glass on its transmission," Dr. Foote and the writer have been using, since

Jan 11, 1919

By William P. Blake

The occurrence of siderite in beds of considerable thickness in the clay formations of Martha's Vineyard, Mass., may have some economical importance, and is at least interesting in a scientific point of view.

United Engineering Trustees, Inc James L Head, '50 E C Meagher, '52 Gail F Moulton, '53 The Engineering Foundation E R Kaiser, '54 W M Peirne, '52 E C Meagher, ex officio as Pres , LET Engineering Societies Library Board James Douglas, '52 Frank T Sisno, '50 American Standards Association Mining Standardization Correlating Committee Otto Herres, '51 H H Otto, '51 B F Tillson, '50

Jan 1, 1952

Jan 1, 1928

By AIME AIME

Jan 1, 1936

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 D. BARRON, NEW YORK, N. Y. SECRETARY BRADLEY STOUGHTON NEW YORK, N. Y.

Jan 2, 1919

Illinois Mining Institute, 224 South Michigan Ave , Chicago, Ill. B. E Schonthal, Secretary. In 1929, 1930 and 1931, the Institute published the Proceedings of its meetings The volumes of the Proceedings are a record of the papers and discussions presented at the two meetings each year and deal with coal mining in Illinois. The Proceedings will be sent to those particularly interested on receipt of sufficient postage to cover mailing

Jan 1, 1933

In Table 47, tonnages shown before 1869 are estimated. After that time they are partly estimated from the total tonnage handled by the Allegheny Valley Railroad from four counties, of which this was one. Several reports to state authorities give a few figures, all probably very low, as is shown by the return in 1880 to the Secretary of Internal Affairs. [ ]

Jan 1, 1942

For the year ending February, 1920 PRESIDENT HORACE V. WINCHELL MINNEAPOLIS, MINN. PAST PRESIDENTS PHILIP N. MOORE ST. Louis, Mo. SIDNEY J. JENNINGS NEW YORK, N. Y. FIRST VICE-PRESIDENT A. R. LEDOUX, NEW YORK, N. Y. TREASURER GEORGE D. BARRON NEW YORK, N. Y SECRETARY BRADLEY STOUGHTON NEW YORK, N. Y

Jan 7, 1919

By Alfred F. Brainerd

A pure white sand, in a large deposit, favorably located with regard to water and railroad transportation, is very desirable for metallurgical and manufacturing purposes. Such a deposit occurs

Jan 1, 1886

The preparation of the General Index, covering volumes of the TRANSACTIONS from XXXVI to LV, inclusive, which has been in preparation for some time, has been delayed on account of pressure of Government work at our printers. The composition of the Index will probably be, finished by the end of this year, which means that the volume will be ready for distribution about the end of February, 1918.

Jan 1, 1918

By R. G. Weavind

ONE of the most important fields of investigation at the Diamond Research Laboratory in Johannesburg is concerned with improvements in metallurgical practices for the diamond mining companies, with particular reference to increased recoveries of the smaller industrial stones. Considerable work has been done on the possible application of flotation processes to the diamond industry.

Jan 7, 1951

In December, 1927, the Institute published two papers on the Brad-ford pool, which were presented at the New York meeting in 1928. Pamphlet copics may be obtained by writing to the Secretary's office for: Oil-field Waters of the Bradford Pool, by Paul D. Torrey. Technical Publicalion No. 38. Some Factors Influencing Production of Oil by Flooding in the Bradford and Allegany Fields, by Paul D. Torrey. Technical Publicaliol No. 39.

Jan 1, 1928

By D. J. Sellmyer

In order to orient single crystals by the back-reflection method it is necessary to know the angles between the various crystallographic planes. These angles have already been published for the hexagonal close-packed metals magnesium, zinc, and cadmium.'

Jan 1, 1965

The following list contains the names of members of whose deaths notices have been printed in MINING AND METALLURGY during the year ending April 1, 1939. Biographical sketches published in MINING AND METALLURGY are indicated in the last two columns.

Jan 1, 1944

Jan 1, 1954

Mr. Address Member ,is hereby proposed by the undersigned; as a Associate Junior Member of the American Institute of Mining Engineers. Signatures of three Members or Associates. Place of birth Year of birth Education, when, where and how acquired, with degrees, if any. A technical education is not requisite for membership. Dates Please give record of experience on following page with dates; for example, in the form used by "Who's Who In America" and similar publications.

Jan 5, 1917