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For the year ending February, 1917 PRESIDENT L. D. RICKETTS,1 NEW YORK, N. Y. PAST PRESIDENTS BENJAMIN B. THAYER,1 NEW YORK, N. Y. WILLIAM L. SAUNDERS,2 NEW YORK, N. Y. FIRST VICE-PRESIDENT SIDNEY J. JENNINGS1 NEW YORK, N. Y. TREASURER GEORGE C. STONE,1 NEW YORK, N. Y. SECRETARY EMERITUS ROSSITER W. RAYMOND, NEW YORK, N. Y. SECRETARY . BRADLEY STOUGHTON NEW YORK, N. Y.

Jan 5, 1916

PRESIDENT L E Young', Pittsburgh, Pa PAST PRESIDENTS Clyde Williams, Columbus, Ohio W. E Wrather, Washington, D C VICE-PRESIDENTS Robert W Thomas', Ray, Ariz C Harry Benedict, Lake Linden, Mich D H McLaughlin, San Francisco, Calif A B Kinzel, New York, N Y Philip Kraft, New York, N Y VICE-PRESIDENT AND TREASURER Andrew Fletcher, New York, N Y

Jan 1, 1949

[Officers and Committees of the Society of Petroleum Engineers 1 Officers and Staff of the AIME 2 Officers of AIME Sections. Predominantly Petroleum in Membership 3 Alphabetical List of Members 5 Geographical List of Members 95 Advertisers' Index 122]

Jan 1, 1961

Jan 1, 1924

Jan 1, 1942

The following persons were appointed as representatives of this Institute on, the American Committee on Engineering Standards.: George C. Stone, J. W. Richards, Arthur L. Walker. The Secretary presented a request from the Engineering Council that the representatives of the Institute be arranged in the dicier of retirement so that one would retire in 1918, two in 1919, and two in 1920. The

Jan 9, 1917

Jan 1, 1934

E. Hill, South Norwalk, Conn. (communication to the Secretary*) :—The phenomenon described by Dr. Ledoux, involving an apparently abnormal high temperature in the air-cylinders of compressors, has not been, so far as I know, discussed in technical literature. The common formula for the adiabatic compression of dry air does not account for heat suficient to flash ordinarily decent cylinder-oils, nor do the text-books include in their theoretical statements any quantitative consideration of the effect of leaks in the ideal machines which they contemplate. This lack I have endeavored to supply by preparing, in the form of a circular, for the use of the customers and correspondents of the Norwalk Iron-Works, a brief mathematical

Jan 1, 1904

By P. W. Harben

Jan 1, 1985

University of Alabama University, Alabama Mining and Metallurgical 'Society JOHN MADDOCK, President WAYNE WEST, Secretary J. R. CUDWORTH, Faculty Sponsor RICHARD L. BOWRON, Counselor University of Arizona Tucson, Arizona - Miners' Society CLYDE LOVING, President THEODORE BROOKs, Secretary A. J. THOMPSON, Faculty Sponsor E. D. GARDNER, Counselor,,

Jan 1, 1941

By Henry T. Mulryan

Since World War II, U. S. chemical companies have loosed a flood of synthetic organic insecticides. These synthetics fall into two broad categories. DDT is the best known of the chlorinated hydro- carbons and Parathion is the most famous (or infamous) of the organic phosphate nerve gas type. Insecticide poisons are not applied at full strength but as dilute sprays or dusts. This permits a broader and more efficient distribution of the active killer.

Jan 12, 1958

By Daniel S. Lyons

Jan 1, 1946

By James R. Piper

Jan 1, 1985

PRESIDENTS DAVID THOMAS 1871 R W RAYMOND 1872-1874 A L HOLLEY1875 ABRAM S HEWITT 1876 T STERRY HUNT 1877 ECKLEY B COXE 1878 - 1879 WILLIAM P SHINN 1880 WILLIAM METCALF 1881 RICHARD P ROTHWELL 1882 ROBERY W HUNT 1883 JAMES C, BAYLES 1884-1885 ROBERT H RICHARDS 1886 THOMAS EGLESTON 1887 WILLIAM B POTTER 1888 RICHARD PEARCE 1889 ADAM S HEWITT 1890 JOHN BIRKINBINE 1891-1892 H M HOWE 1893 JOHN FRITZ 1894 J D WEEKS 1895 E G SPILSBURY 1896 THOMAS M. DROWN 1897 CHARLES KIRCHHOFF 1898

Jan 1, 1938

Jan 1, 1891

By J. Gordon Parr, D. H. Polonis

RYSTALLOGRAPHIC relationships between martensitic a' (close-packed-hexagonal) and retained fi (body-centered-cubic) have been studied in binary alloys of titanium with manganese, molyb- denum, chromium, and iron.'" In these investigations, the habit planes of the martensitic phase were determined, as well as the orientation relationships between martensitic and parent phases. In each alloy

Jan 1, 1957

Executive ARTHUR S DWIGHT, Chairman B THAYER CHARLES F RAND P MATHEWSON J V W REYNDERS Membership WILLIAM H BASSETT, Chairman W Y WESTERVELT Vice-chairman P MATHEWSON H G MOULTON F T RUBIDGE Finance WALTER H ALDRIDGE, Chairman GEORGE D BARRON GALEN H CLEVENGER

Jan 1, 1923

Jan 7, 1976

By Phyllis A. Lyday

Jan 1, 1985