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Jan 1, 1894

By Leon W. Dupuy

SUPPLEMENT THESE tables should accompany Figs 6, 7, 8, 9 and 10, respectively. To follow Fig 6: TABLE 2[a]-Drill Rod [ ] To follow Fig 7: TABLE 3-Rod Coupling [ ]

Jan 1, 1947

Michigan College of Mining and Technology, Houghton, Mich W. O Hotchkiss, President. Copies of the Engineering Research Bulletins of the College of Mining and Metallurgy are sent free upon request to those who ask to be placed on the mailing list. From the complete list

Jan 1, 1933

By AIME AIME

Jan 1, 1936

Jan 1, 1943

Jan 1, 1892

Jan 1, 1946

New Products Equipment

Jan 5, 1953

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Jan 1, 1946

Jan 1, 1935

STANDING COMMITTEES Executive-A. R. LEDOUX, chairman. Membership-GEORGE C. STONE, chairman. Finance-J. V. N. DORR, chairman. Library-E. GYBBON SPILSBURY, chairman. Papers and Publications--BRADLEY STOUGHTON, chairman. Nominations-POPE YEATMAN, chairman.

Jan 9, 1919

President-Mrs John R C Mann, 90 Edgemont Road, Scarsdale, N Y First Vice-President-Mrs Earl H Bunce, Residence Park, Palmerton, Pa Second Vice-President-Mrs. W Clifford Bowden, Jr, 800 Midland Road, Oradell, N J Third Vice-President-Mrs F Edgar Kudlich, 521 Rutter Ave, Kingston, Pa

Jan 1, 1958

By T. Egleston

SOME months ago samples of black oxide of copper and of pig copper from Colorado were sent to me to examine for arsenic and

Jan 1, 1882

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

Jan 1, 1949

New Products Equipment

Jan 12, 1951

Jan 1, 1922

Jan 1, 1895

[OH. O'C. Acker '86 Jinzoc Adachi '88 *Truman H. Aldrich '78 Walter H. Aldridge '89 *Anson W. Allen '87 *John H. Allen '84 *Thomas Andrews '94 *William R. Appleby'90 *W. Lawrence Austin '82 . S. Ayres'73]

Jan 1, 1946