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[Title 1 Contents Page . 3 Officers and Directors 5 Past and Present Officers 6 Standing Committees 9 Professional Divisions 11 Technical Committees 12 Institute Representatives on Boards 17 United Engineering Society 17 Engineering Societies Library Board 17 Engineering Foundation Board 17 Other Committees 17]

Jan 1, 1928

Jan 1, 1927

Jan 1, 1970

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Jan 1, 1907

Jan 1, 1935

By Robert Glass Cleland

[PARTIAL LIST OF DIRECTORS OF THE NICHOLS CHEMICAL COMPANY AND NICHOLS COPPER COMPANY: G. H. Nichols William H. Nichols, Sr. William H. Nichols, Jr. Charles W. Nichols E. Remington Nichols George Martin Luther John Brown Francis Herreshoff]

Jan 1, 1952

Jan 1, 1912

[For the year ending February, 1936 PRESIDENT AND DIRECTOR HENBY A. BUEHLER3 ROLLA, Mo. PAST PRESIDENTS AND DIRECTORS FREDERICK M. BECKET1 NEW YORK, N. Y. HOWARD N. EAVENSON2 PITTSBURGH, PA.]

Jan 1, 1936

By Frank Soulé

Jan 1, 1900

OFFICERS AND DIRECTORS For the year ending February, 1934 PRESIDENT AND DIRECTOR FREDERICK M. BECKET NEW YORK ,N . Y. PAST PRESIDENTS AND DIRECTORS ROBERT E. TALLY JEROME ARIZ SCOTT TURNER WASHINGTON D. C.

Jan 1, 1932

Jan 1, 1918

Jan 1, 1910

United Engineering Trustees, Inc. GEORGE D. BARRON WILLIAM H. BASSETT R. M. ROOSEVELT The Engineering Foundation GEORGE D. BARRON H. C. BELLINGER E. DEGOLYER Engineering Societies Library Board ROBERT PEELE PHILIP W. HENRY H. K. MASTERS A. B. PARSONS, Ex-officio R. H. SWEETSER

Jan 1, 1932

PROF RICHARD ÅKERMAN Stockholm, Sweden SIR LOWTHIAN BELL Middlesborough, England DR THOMAS M DROWN South Bethlehem, Pa PROF HATON DE LA GOUPILLIERE Paris, France PROF HANS HOEFER Leoben, Austria PROP DR BRUNO KERL Berlin, Germany M FLORIS OSMOND Paris, France PROF DIMITRY CONSTANTIN TSCHERNOFF St Petersburg, Russia PROF DR HERMANN WEDDING Berlin, Germany

Jan 1, 1910

New Products Equipment

Jan 12, 1951

Jan 1, 1944

Jan 1, 1944

[Year of Election 1944. WALTER HULL ALDRIDGE New York, N. Y. 1946. PETER M. ANDERSON Johannesburg, South Africa 1946. CHARLES CAMSELL Ottawa, Ont., Canada 1946. CHARLES AUGUSTUS CARLOW Fife, Scotland 1946. CECIL DESCH London, England 1946. WILLIAM FRASER London, England 1922. FEDERICO GIOLITTI Torino, Italy]

Jan 1, 1946

By James H. Pannell, John Dasher, Wilfred L. Freyberger, A. M. Gaudin

A new sorting process for beryllium minerals is described. This depends upon emission of neutrons upon irradiation by gamma rays, a nuclear reaction which is specific for beryllium at the appropriate energy level. Signals given by neutrons when ore passes on a belt are changed to mechanical commands through amplifiers and other electrical equipment.

Jan 4, 1950