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Data about production in this state are very scarce, and with the exceptions of the years 1850, 1860, 1880 and the later years, the tonnages shown in Table 67 are estimates. [ ]

Jan 1, 1942

Jan 1, 1968

Jan 1, 1958

Jan 1, 1907

Jan 1, 1885

Jan 1, 1958

Established as a Division September 27, 1949 LeRoy Scharon, Chairman C. M. Cooley, Secretary 29 West 39th Street New York 18, N Y

Jan 1, 1952

[PRESIDENT ASD DIRECTOR LOUIS S. CATES 3 .New York, N. Y. PAST PRESIDENT AND DIRECTOR CHESTER A. FULTON1 .Baltimore, Md. HARVET S. MUDD 2I Los Angeles, Calif.]

Jan 1, 1946

Jan 1, 1929

Jan 1, 1967

By American Institute of Mining Engineers

The Institute conducts jointly with the American Society of Civil Engineers, American Society of Mechanical Engineers, and American Institute of Electrical Engineers, certain activities as listed below, and is joint owner with them of certain properties.

Jan 1, 1923

By S. F. Bartram, G. A. Chase

COMPUTED X-ray diffraction powder patterns of YNi3, YNi5, and CbBe3 are available on request from either author.

Jan 1, 1968

A bibliography of the use of pulverized coal for the years 1917 and 1918 has been compiled by the Library for the Institute. It comprises three typewritten sheets. Copies may be obtained by those interested at $2 per copy.

Jan 5, 1919

The Mines Handbook, Published by Mines Information Bureau, Inc., Suffern, N Y. It is felt that the Mines Information Bureau should be included in this directory, as publishers of a valuable reference book of mining companies of the United States and Canada, known as the "Mmes Handbook "

Jan 1, 1933

The amendment to Article III, Section 1, of the Constitution, raising the dues from $10 to $12 a year commencing in 1917, which was submitted to the members for letter ballot, was passed by a vote of 1,039 to 401.

Jan 4, 1916

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

Representatives from 100 countries will focus on aspects of energy, ocean mining, safety, and manpower training at Houston's Astrodomain.

Jan 4, 1978

By Barbara L. Lakin, Sherman K. Okun

According to a recent market survey, the quality and ability of key personnel, plus past performance on the job, rank high as criteria used by mining companies when selecting a project engineering contractor.

Jan 9, 1977

By Frank Soulé

Jan 1, 1900