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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

For the year ending February, 1918 PRESIDENT PHILIP N. MOORE, ST. Louis, Mo. PAST PRESIDENTS WILLIAM L. SAUNDERS NEW YORK, N. Y. L. D. RICKETTS, NEW YORK, N. Y. FIRST VICE-PRESIDENT SIDNEY J. JENNINGS, NEW YORK, N. Y. TREASURER GEORGE C. STONE, NEW YORK, N. Y. SECRETARY EMERITUS ROSSITER W. RAYMOND, NEW YORK, N. Y. SECRETARY BRADLEY STOUGHTON ` . . . . NEW YORK, N. Y.

Jan 7, 1917

New Products Equipment

Jan 6, 1950

By N/A NONE

[Acker Drill Co., Inc 1091 Bauer Advertising, Inc. Allen-Sherman-Hoff Pump Co. Third Cover Dee Carlton Brown, Advertising Allis-Chalmers Mfg. Co. 1008, 1009 Compton Advertising, Inc. American Cyanamid Co. 1018, 1019 James J. McMahon, Inc. American Manganese Steel Div., American Brake Shoe Co. 1036 Fuller & Smith & Ross, Inc. Anaconda Copper Mining Co. 1033 Kenyon & Eckhardt Inc. Carlon Products Corp. * Penn and Hamaker, Inc. Chester Cable Corp. * George Homer Martin Associates]

Jan 1, 1952

Jan 1, 1947

The Howe Memorial Lecture, in memory of Henry Marion Howe, Past President of the Institute, was authorized in April, 1923, as an annual address to be delivered by invitation under the auspices of the Institute by an individual of recognized and outstanding attainment in the science and practice of iron and steel metallurgy or metallography, chosen by the Board of Directors

Jan 1, 1943

Jan 1, 1924

Jan 1, 1940

Jan 1, 1938

[EXECUTIVE COMMITTEE OF THE BOARD OF DIRECTORS LOUIS S. CATES, Chairman DONALD H. NCLAUGHLIN, Vice-Chairman JOHN L. CHRISTIE JOHN R. SUMAN CLYDE E. WEED]

Jan 1, 1946

Jan 1, 1947

By P. Barnes

Exact accounts hare been kept of the cost of these chimneys, and it may he a matter of some possible interest. that the plans and details of cost should be laid before the Institute. The statement of cost herewith submitted does not give minute particulars of the weights or quantities of material used, although these are noted upon the company's books.

DR FRANK DAWSON ADAMS Montreal, Canada HENRY STURGIS DRINKER Bethlehem, Pa PROF HATON DE LA GOUPILLIERE Paris, France SIR ROBERT A. HADFEILD London, England HERBERT C. HOOVER Leoben, Austria ROBERT W. HUNT Chicago, ILL JAMES FURMAN KEMP New York, N.Y. PROF HENRI LOUIS LE CHATELIER Paris France EZEQUIEL ORDONEZ Mexico City, Mexico ALEXANDRE, POURCEL Paris, France RICHARD H, RICHARDS Boston Mass. JOHN E. STEAD Middlesborugh, England PROF DIMITRY CONSTANTIN TSCHERNOFF St Petersburg, Russia CHARLES D WALCOT Washington D.C.

Jan 1, 1923

President-Mrs Andrew E Beer, Richardson Ave, Sea Cliff, L I, N Y First Vice-President-Mrs Lyman H Hart, 6-F Essex House, Garth Woods Apts, Scarsdale, N Y Second Vice-President-Mrs John R C Mann, 90 Edgemont Road, Scarsdale, N Y Third Vice-President-Mrs Edward P Chapman, Jr, 2632 Vista Larga Dr N E, Albuquerque, N M Fourth Vice-President-Mrs R A Cattell, 7717 14th St, N W Washington 12, D C

Jan 1, 1959

By Robert Glass Cleland

[NEW YORK OFFICE James Douglas President Chairman of Board Walter Douglas Vice-president President Louis S. Cates President Cleveland H. Dodge Vice-President Chairman of Board]

Jan 1, 1952

Jan 1, 1950

By D. Gupta

Rates of autothermic reactions are sensitive to temperature variations to the extent of potential extinction of the reaction. Such reactions, when carried out in the countercurrent mode with feed-back of energy between reacting phases, may result in the possibility of multiple steady-states. In regions of great sensitivity, minor variations, especially feed-temperatures, are an important criterion for such instabilities. Mathematical models have been used to delineate the parameter-fields in which instabilities might occur. The metallurgical system chosen to experimentally verify the above theoretical findings was the exothermic oxidation reaction of magnetite to hemitite.

Jan 1, 1977

The Howe Memorial Lecture, in memory of Henry Marion Howe, Past President of the Institute, was authorized in April, 1923, as an annual address to be delivered by invitation under the auspices of the Institute by an individual of recognized and outstanding attainment in the science and practice of iron and steel metallurgy or metallography, chosen by the Board of Directors upon recommendation of the Iron and Steel Division. The following were the Howe lectures and lecturers for the years indicated

Jan 1, 1929

In preparation for the 119th meeting, New York, Feb. 17 to 20, 1919, the following committees have been appointed: Committee on Arrangements ALLEN H. ROGERS Chairman. NY. S. DICKSON, Secretary. J. E. JOHNSON, JR. F. T. RUBIDGE. P. G. SPILSBURY. H. C. PARMELEE. FOREST RUTHERFORD. Committee on Annual Dinner Committee on Luncheon F. T. RUBIDGE. FOREST RUTHERFORD, Chairman. E. B. STURGIS. E. MALTBY SHIPP Committee on Patriotic Meeting H. C. PARMELEE, Chairman.

Jan 11, 1918

By Frank Calvin Roberts

An examination of the various devices employed for operating blast-furnace charging-bells has led me to design the arrangement slrown in the accompanying figure. In order to contribute to the even distribution of stock, the movement of the bell should be in a vertical line, since any tendency to side-thrust which may be in-

Jan 1, 1888