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E. O'C. Acker ?86 'Truman H. Aldrich '78 Anson W. Allen '87 John H. Allen '84 W. Lawrence Austin ?82 W. S. Ayres '73 David Baker '86 'John Henry Banks '83 'Wm. de L. Benedict '88 'Robert Bentley '84 'Andrew A. Blair '75 'Walter M. Brodie Frederick Burbidge '87 'H. H. Burden '83 'Charles Butters '88 'R. C. Canby '82 Arthur C. Carson '84 'H. M. Chance '74 J. Parke Channing '84 Frank D. Chase '84 Clarence Raymond Claghorn '84 M. E. Clark '86 W. M. Claypool '84

Jan 1, 1937

United Engineering Trustees, Inc James L Head, '55, E C Meagher, '56, Gail F Moul¬ton, '57 Advisory Committee to Real Estate Committee Cleveland Dodge, Herbert Hoover, Paul D Merica The Engineering Foundation W M Peirce, '56, A M Gaudin, '58 Research Procedure Committee A M Gaudin, March '54 Engineering Societies Library Board Frank T Sisco, '54, E M Wise, '56, James L Head, ex officio Engineering Societies Personnel Service Board of Directors E J Kennedy, Jr, E H Robie

Jan 1, 1954

By C. A. Shook, W. H. W. Husband, D. B. Haas

Although previous studies l,2,3 have been made, no correlations for pressure drop have been proposed. This is probably because severe particle breakage occurred and pressure drops changed substantially with time. A quantitative statement of the relationship of pressure drop to the parameters of the system is desirable for lignite since, unlike higher rank coals, lignite slurries are thixotropic. The present investigation was undertaken to quantify the pipeline behavior and required continuous monitoring of pressure drop and size distribution.

Jan 2, 1979

Jan 1, 1948

[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. D. R. Tone, Assistant Secretary]

Jan 1, 1961

By William P. Blake

The late Dr. Ebenezer Emmons of Albany, one of the geologists of the Survey of New York and the author of The Taconic System, brought to notice as early as 1838" a peculiar concretionary and lamellar form of phosphate of lime, to which he gave the name Eupyrchroite, from the Greek words for fire and color, with the pefix

Jan 1, 1893

By B. H. Bergstrom

In reading this article, it was difficult to follow through the example given as a starting point in the derivation of the theoretical equation which relates ball size to feed size. A discussion with F. C. Bond led to the following clarification: Bond postulates that "the breaking force exerted by a ball varies . . . as the cube of its diameter . . ." and that the force in pounds per square inch required to break a particle varies . . . as its diameter squared."

Jan 5, 1959

Jan 1, 1923

Jan 1, 1943

Jan 1, 1942

By George S. Koch

We have devised a multivariate statistical model useful to interpret data from exploration geochemistry and also pertinent for the analysis of data from petrology, paleontology, and other geological fields. The model is applied to several simulated cases in order to compare anomaly recognition by inspection and by quadratic regression.

Jan 1, 1977

YEAR OF ELECTION 1922. FEDERICO GIOLITTI Torino, Italy. 1917. HERBERT HOOVER Washington, D. C. 1941. DANIEL COWAN JACKLING San Francisco, Calif. 1939. HENRY KRUMB New York, N. Y. 1942. Essington Lewis Melbourne Vic., Australia 1921. C. McDERMID London, England. 1942. PAUL DYER MERICA New York, N. Y. 1913. EZEQUIEL ORDONEZ Mexico City, Mexico. 1938. A.M. PORTEVIN Paris France 1937. JOHN V.W. REYNDERS, New York, N. Y. 1937. GEORGE S. RICE Washington, D. C. 1911. ROBERT H. RICHARDS Cambridge, Mass. 1934. T.A. RICKARD Victoria, B.C., Canada

Jan 1, 1943

Joseph W. Richards was elected Vice-president and Director to fill the vacancy caused by the election of Philip N. Moore to the presidency. Benjamin B. Thayer was elected Director to fill the, vacancy caused by the election of Charles W. Goodale as Vice-President and Director. Sidney J. Jennings was elected First Vice-President of the Institute. George C. Stone was elected Treasurer of the Institute. Rossiter W. Raymond was appointed Secretary Emeritus of the Institute. Bradley Stoughton was elected Secretary of the Institute. Burr A. Robinson was appointed Assistant Secretary of the Institute.

Jan 4, 1917

By E. H. Dix

Jan 1, 1940

Extractive Metallurgy Division Institute of Metals Division Iron and Steel Division OFFICERS AND COMMITTEES John Chipman, President W R Hibbard, Jr, Past President C C Long, Vice-President T D Jones, Treasurer R W Shearman, Secretary AIME, 29 West 39th Street New York 18, N Y

Jan 1, 1959

By R. A. Wood, R. I. Jaffee, H. R. Ogden, D. N. Williams

CERTAIN titanium alloys when quenched to retain the 0 phase at room temperature show extensive transformation of 0 to martensitic a during deformation. Alloys of this type are usually characterized by low tensile yield strength, a large spread between yield strength and ultimate strength, and high uniform elongation. A previous investigation of this phenomenon concluded that the principal contribution of the martensitic transformation was to increase the amount of deformation prior to fail-

Jan 1, 1964

By M. I. Nathan, K. Weiser, R. S. Levitt, G. Burns, J. Woodall

Jan 1, 1964

By E. J. Schmitz

This trip, beginning at Springfield, August 12, 1897, and ending at the same place fourteen days later, extended south and southeast through Christian, Ozark and Taney counties,

Jan 1, 1899

By William Kelly

An exploring-drift, on the bottom level of the Curry mine, at Norway, Mich., on the Menominee range, cut a stream of water, which increased considerably the expense of pumping. The hope that the supply would drain off was not realized. It was decided to build a dam in the exploring-drift, as it was estimated that the cost would be recovered by the saving in fuel in less than two months.

Jan 1, 1898

By R. C. Emmett, D. A. Dahlstrom

Application of continuous filtration to precipitate dewatering requires not only careful equipment selection, choice of appropriate media, but also close control of precipitation technique itself.

Jan 1, 1961