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South Dakota produced very little coal in the period discussed, and little prior to 1883. The first record of the use of coal mined in the state was in 1874, and the tonnages in Table 74 are estimated. [ ]

Jan 1, 1942

New Products Equipment

Jan 12, 1950

Jan 1, 1903

Jan 1, 1885

R. Dawson Hall, who has long been a member of the editorial staff of Coal Age, has been appointed managing editor. Increase the Promise of the future. Buy W. S. S.

Jan 7, 1919

Jan 1, 1932

[United Engineering Society WALTER H. ALDRIDGE J. VIPOND DAVIES J. V. N. DORR Engineering Societies Library Board SYDNEY H. BALL ALEXANDER C. HUMPHREYS GEORGE C. STONE JOHN H. JANEWAY Engineering Foundation Board H. M. BOYLSTOX J. VIPOND DAVIES GALEN H. CLEVENGER]

Jan 1, 1928

By Frank Soulé

Jan 1, 1900

Jan 1, 1941

Jan 1, 1932

Jan 1, 1941

By William P. Prof. 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.

Jan 1, 1876

OFFICERS AND DIRECTORS President and Director AUGUSTUS B KINZEL, '60, New York City Past President and Director GROVER J HOLT, '59, Ishpeming, Michigan President-elect and Director HOWARD C PYLE, '61, Los Angeles, Calif

Jan 1, 1958

At the annual meeting of Southern California Section, held on May 28, the following officers were elected: Chairman, W. F. Staunton, vice-chairman, L. C. Mott, secretary-treasurer, A. B. Carpenter; executive committee, J. W. Neill, C. Colcock Jones, Mead Goodloe. ALVIN B. CARPENTER, Secretary-Treasurer.

Jan 8, 1919

Jan 1, 1952

Jan 1, 1965

The 116th Meeting of the Institute is being held in New York as this Bulletin goes to press. A full account of the proceedings, together with a report of the discussion of technical papers, will be printed in the April Bulletin.

Jan 3, 1918

A B Cummins President James C Gray, President-Elect J W Woomer, Past President C E Lawall, Eastern Regional Vice-President Donald W Scott, Central Regional Vice-President H C Weed, Western Regional Vice-President Nathaniel Arbiter, Treasurer John Cameron Fox, Secretary AIME 29 W 39 St New York 18, N Y

Jan 1, 1960

By R. W. Raymond

RECENT literary labors have led me to the compilation of the following tables and estimates, which may possess interest for my colleagues in the Institute, and which are here submitted without comment.

Jan 1, 1876