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COUNCIL.* PRESIDENT OF THE COUNCIL. JAMES F. KEMP NEW YORK, N. Y. (Term expires February, 1913.) VICE-PRESIDENTS OF THE COUNCIL. S. B. CHRISTY BERKELEY, CAL. W. A. LATHROP PHILADELPHIA, PA. GARDNER F. WILLIAMS WASHINGTON, D. C. (Term expires February, 1913.) KARL EILERS NEW YORK, N. Y. WALDEMAR LINDGREN WASHINGTON, D. C. BENJAMIN B. THAYER NEW YORK, N. Y. (Term expires February, 1914.)

Jan 1, 1917

By R. L. Wiegel

Consideration has been given to the merging of a size reduction model and a mineral liberation model to permit prediction of mineral composition as a function of size. The results of this integration of size reduction and mineral liberation models are discussed from both theoretical and practical viewpoints using batch grinding data for a magnetic iron formation sample as a demonstration vehicle.

Jan 1, 1977

Council PRESIDENT OF THE COUNCIL. JOHN HAYS HAMMOND NEW YORK, N. Y. (Term expires February, 1908 ) VICE-PRESIDENTS OF THE COUNCIL. HENRY M. HOWE NEW YORK, N. Y. J. B. GRANT DENVER, COLO. JAMES D. HAGUE NEW YORK, N. Y. (Term expires February, 1908.) SAMUEL B. CHRISTY BERKELEY, CAL. JOHN A. CHURCH NEW YORK, N. Y. PERSIFOR FRAZER PHILADELPHIA, PA. (Term expires February, 1909 )

Jan 1, 1910

By Joseph Bernhardt

Use of concrete underground at No. 4 mine, Cornwall, Pa., has become increasingly important. Starting with small amounts at finger openings, occasional raises, piers, its use has expanded to entire slushing drifts and haulages. Besides eliminating costly timber repairs, concreting costs of slushing drifts have proved cheaper than timbering. Higher haulage-concreting costs are offset by no maintenance charges during the life of the haulage.

Jan 3, 1950

NEW MEMBERS. The following list comprises the names of those persons who became members during the month of June, 1913: Members. ANGERER, VICTOR, Vice-Prest. and Genl. Mgr., Wm. Wharton, Jr. &, Co., Inc., 25th St. and Washington Ave., Philadelphia, Pa. BULLOCK, ALLYN, Min. Engr., Hazleton, Pa. CUNNINGHAM, NOEL Met. Engr. Hollinger Gold Mines Ltd., Timmins, Ont Canada ESTABROOK, EDWARD L., Supt. of Colliery 426 Center St., Ashland, PA. GATES A. O. Instructor Purdue Univ. La Fayette Ind. 1 LUDLUM, ALBERT C., Prest., New York Engrg. Co., ,2 Rector St., New York, N. Y. MILLER, HERBERT F., Met. Engr P. O. Box 142, Verona, Pa. MORTON, ELMER T., Min. Engr Clifton, Ariz. MURFIT, RICHARD H.. Fdv. Asst Hess Steel Castings Co., Bridgeton, N.J. QUAYLE, THEODORE W., Chief Sampler, Metcalf Mines, Arizona Copper Co., Metcalf, Ariz.

Jan 7, 1913

NEW MEMBERS The following list comprises the names of those persons who became members during the period Oct. 10 to Nov. 10, 1915: Members BECK, WESLEY HUDSON, Civ. and Min. Engr., Ellsworth Collieries Co., Ellsworth, Pa. BRADSHAW, GRANT D., Pres., Andrews-Bradshaw Co, 409 Diamond Bank Bldg., Pittsburgh, Pa. BUTLER, BERT S., Geol U. S. Geological Survey, Washington, D. C. CAMERON, FRANK, Asst. Mine Foreman, Braden Copper Co., Rancagua, Chile, So. Amer. CHEN, YEFAH FRANCIS, Asst. Min. Engr., Pinghsiang Colliery, Pinghsiang-Ki, via Changsha, China. CLAGHORN, DAVID MONTGOMERY, Mining Engr., Timekeeper, Wilkeson Coal & Coke Co., Wilkeson, Wash. DAVIS, REUBEN WALDO, Min. Engr., Supt., Cannel Coal Co., Dolores, Webb Co., Tex. DOUTHETT, GEORGE M., Supt Crescent Metals Co., Glenwillard, Pa. DUNSFORD, ENSOR R., Min. Engr., Asst. Supt., Victoria Gypsum Min. & Mfg. Co., Ltd., Quarry, St. Alms. C. B.. Nova Scotia. Canada.

Jan 12, 1915

NEW MEMBERS The following list comprises the names of those persons who became members during the month of February, 1914: Members ASANO, KOSAKU, Vice-Mgr..: Ashio Copper Mine, Shimozuke, Japan. BIRD, FRANK H., Constr. Engr E. 417 Sixteenth Ave., Spokane, Wash. COLES, HENRY 0., Chem Copper Queen. Cons. Min. Co., Bisbee, Ariz. COLLEY, HYLTON H., Met Copper Queen Cons. Min. Co., Douglas, Ariz. DALEY, MITCHELL J., Mill Supt Utah Apex Min. Co., Box 753, Bingham Canyon, Utah. FISHER, GEORGE EDWARD, Director, 3d Vice-Pres., Grasselli Chemical Co. 1551 East 115th St., Cleveland, Co. FRASER, EVERETT L., Mill Supt Tightner Mines Co., Alleghany, Cal. FRASER, WILLIAM L., Min. Engr North Star Mines, Grass Valley, Cal. FROLLI, ALBERT W. Min. Engr 216 North Main St., Salinas, Cal. GEARHART, FRANK B., Chief of Smelter Dept., N. J. Zinc Co., 405 Columbia Ave.. Palmerton, Pa.

Jan 3, 1914

[THE BLAST FURNACE Blast Furnace U. S.A., M. O. Holowaty, and C. M. Squarcy Part I - Colonial Ironmakers (JOURNAL OF METALS, May, 1957)3 Part II - The Age of Mineral Coal (JOURNAL OF METALS, July, 1957) 9 Part III - From Falling Creek to Zug Island (JOURNAL OF METALS, October, 1957 17 Sterling, Ringwood, and Greenwood, R. W. Shearman and F. Weston Starratt (JOURNAL OF METALS, September, 1959) 23]

Jan 1, 1961

EXECUTIVE COMMITTEE OF THE BOARD OF DIRECTORS M. L. Haider, Chalrman Phillp Kraft, Vice-Chairman T. B. Counselman Evan Just J. B. Morrow FINANCE COMMITTEE OF THE BOARD OF DIRECTORS Gall F. Moulton, Chairman L F Remartz I W M. Peirce INVESTMENTS Erle V. Daveler, Chalrman, '54 Henry Rrumb, '53 W. M. Peirce, '55 Gall F. Moulton, ex officu, Chairman, Finance Committee Andrew Fletcher, ex offrcio Treasurer, AIME

Jan 1, 1952

NEW MEMBERS The following list comprises the names of those persons who became members during the period of Septa 10, 1917, to Oct. 10, 1917. ALDER, ALFRED 1020 Kansas City St., Rapid City, So. Dakota. AUBEL, VERNE WALLACE, Night Supt. of Works, Broken Hill Proprietary Co., Ltd., Newcastle, N. S. W., Aust. BAKER, ROBERT EARL Works Mgr., Keokuk Electro-Metals Co., Keokuk, Iowa. BALLAMY, JOHN H., Min. Engr., Delaware, Lackawanna & Western Railroad Co,Scranton, Pa. BRADLEY, ALLEN PALMER, Met., American Smelting & Refining Co., Murray, Utah. BRIGGS, WALTER M Pres. Regal Mines Co. Dedham, Mass. BRONSON, EDMOND B., Pres., Bagdad Copper Co., 120 Broadway, New York, N. Y. BROOK, NILES WINFIELD, District. Mgr., Cleveland Min. Co., 625 Bank & Insurance Bldg., Dubuque, BUSKETT, EVANS 1V., Assayer, Custom Assay Office, 620 Joplin St., Joplin, Mo. CAMPBELL, JOHN HATES, Chem. Engr., Robert W. Hunt. & Co., 2200 Insurance Exchange, Chicago, Ill.

Jan 11, 1917

NEW MEMBERS The following list comprises the names of those persons who became members during the period Aug. 10. 1918, to Sept. 10, 1918. BATCHELOR,. HARRY D., Laboratory Director, National Carbon Co., Inc., Cleveland, Ohio. BROWNING, C. P., Gen'I Supt., Britannia Min. & Smelt. Co., Ltd., Britannia Beach, B. C., Canada. COMSTOCK, GEORGE F., Met., Chg. of Physical Test Laboratory, Titanium Alloy Mfg. Co., Niagara Falls, N. Y. CONCKLIN, BERT M Chief Engr., Arthur lron Mill. Co., Hibbing, Minn. COWAN, W. A., Asst. Chief Chem., National Lead Co., 129 York St., Brooklyn, N. Y. DAVIDSON, PHILIP Met., Scovill Mfg. Co., Waterbury, Conn. DAVIS, Louis L., Mgr. & Treas., Commonwealth Min. Co., 911 Foster Bldg., Denver, Colo. DAY, P. W Chem. Engr., Western Cartridge Co., 207 E. 12th St., Alton, Ill. DECKER, HAROLD DEBIT, Co. A, 27th Engineers, A. P. 0. 714, A. E. F., Care Postmaster, N. Y.

Jan 10, 1918

University of Alabama-University, Alabama, Mining and Metallurgical Society, William L Mason University of Alaska-College, Alaska, Mining Society of the University of Alaska, Doug¬las W Huber University of Arizona-Tucson, Arizona, Miners Society, S L Smith University of California-Berkeley, California, Mineral Technology Association, Jack Washburn Carnegie Institute of Technology-Pittsburgh, Pennsylvania, The Metals Club, Gerhard Derge Case Institute of Technology-Cleveland, Ohio, Case Metallurgical Engineering Society, Robert F Hehemann

Jan 1, 1958

The following list comprises the names of those persons who became members during the period of Mar. 10, 1918, to Apr. 10, 1918. ADAMS, NOAH- :.. Geol.,. E. N. Gillespie & Co., Box 1875, Tulsa, Okla. ALVAREZ, PEDRO Asst. Met., American Smelt. & Refin. Co., Blue Hill, Maine. BARTRAM, JOHN G., Pet. Geol., Roxana Petroleum Co. of Oklahoma, Cheyenne, Wyo. CHANEY, S. E Supt.., Arizona Binghamton Copper Co., Stoddard, Ariz. CLEVELAND, EARL C Mgr., Deadwood Min. Co., Mogollon, N. M. DENNIS, HOWARD B Min. Engr., Empire Mines, Grass Valley, Cal. FOWLER, ARTHUR A., Partner, Rogers, Brown &- Co., 30 Church St., New York, N. Y. FRIEDMAN, L. A Pres. and Gen'l Mgr., Rochester Mines Co., Lovelock, Nev. GUIBERSON, S. ALLEN, JR 923-24 1. N. Van Nuys Bldg., Los Angeles, Cal. KROHN, ARTHUR Mine Supt., Missouri Metal Corpn., Mine La Motte, Mo. KURSELL, H. A., Mgr., Altai Mines Ltd., Zmeinogorsk, Altai Gov't, Siberia, Russia. LANE, L. RAY Mine Examinations, Galiano 24, Aptd. 1066, Havana, Cuba.

Jan 5, 1918

By F. H. Rhines

Page Foreword. By F. N. Rhines............................525 Design Factors for the Metal Forms with Which Powder Metallurgy May Compete. By Fred P. Peters...................... ......527 Discussion..................................530 Powder Metallargy as Applied to Machine Parts. By A. J. LanghamMer........531 Discussion......................... . Pole Pieces for Electric Motors from Iron Powder. By F. V. Lenel...........535 Discussion....................... . Bearings from Metal Powders. By W. R. Toeplitz.................542 Discussion.........................'.........549 Brushes and Allied Powder-metal Parts. By R. R. Hoffman . .............'550 Electrical Contacts Manufactured from Metal Powders. By E. I. Larsen........554 Sintered Magnets. By C. B. Fulton........................557 Friction Articles from Metal Powders. By C. T. Cox..................565 Discussion..................................567 Certain Characteristics of Silver-base Powder Metallurgical Products. By I?. R. Hensel and E. I. Larsen........................ ....569 Discussion............................... . . . . 579 Some Properties of Sintered and Hot-pressed Copper-tin Powder Compacts. By C. G. Goetzel..................................580 Discussion..................................593 The Sintering of Metal Powders—Copper. By C. J. Bier and J. F. O'Keefe......596 Some Experiments on the Effect of Pressure on Metal-powder Compacts. By Jerome F. Kuzmick..................................612 Discussion.................................. 630

Jan 1, 1945

NEW MEMBERS The following list comprises the names of those persons who became members during the period Dec. 10, 1916 to Dec. 31, 1916. BOWMAN, Joseph V., Chem., Andes Copper Mining Co., Chanaral, Chile, South America. CALDER, NORMAN L., Min. Geol., Cia. Minera y de Fomento, Watkins, Fomento Prov. de Santa Clara., Cuba. CONRADS, RALPH A., Met. Engr., Magna Plant, Utah Copper Co., Garfield, Utah. FARR, T. H. POWERS, JR. Asst. Assayer, Argonaut Mining Coy Jackson, Cal HAURY, PETER S., Min. Engr ...Alta Loma, Cal. HOULE, ARTHUR, Supt., Shattuck-Arizona Copper Co., Box 2009, Bisbee, Ariz. LEIB, VICTOR E?, Min. Engr 4204 Ave. D, Austin, Tex. LINDSLEY, THAYER, Min. Engr 82 Beaver St.,. New York, N. Y. POTTER, OCHA Supt., Superior Copper Co., Houghton, Mich. ROCCA, BERNARD T.; Engr., Bluebell Mine, Cons. Arizona Smelting Co., Mayer, Ariz. SAFFOLD, RAY P P.'0. Box 436, Douglas, Ariz. THOMS, JAMES EZRA, Asst. Chief, Milling, -Roasting, Acid Depts., Mineral Point Zinc. Co., Depue, Ill. TOMITA, HARUYOSHI, Met. Engr., Mitsubishi Co., Osaruzawa Mine, Akita-ken, Japan.

Jan 2, 1917

SECTION I PAGE PAGE Bulletin Wanted v Northwest Mining Convention St. Louis Meeting v (Columbia Section) xvi Proceedings of the Meeting of Affiliated Student Societies... xvii the Board of Directors vii Harrison W. Craver, New Li-¬ John Fritz Medal viii brary Director xviii Herbert C. Hoover, Food. Con Library xx troller viii Pamphlets for Sale xxii President's Prize ix Membership xxxvi Emmons Memorial Fellowship. x Biographical Notice of Her¬ Meetings of Various Societies. x Mann A: Keller : lviii Personal xi Institute Committees lix Employment xii Officers and Directors lxvi Local Section News xiii

Jan 5, 1917

By S. S. Hsieh

Important carboxylic acid components of tall oils were tested individually as phosphate flotation reagents. These included C18 unsaturated fatty acids and C10 to C18 saturated fatty acids and resin acids. These experiments were conducted to evaluate such factors as the degree of unsaturation, hydro-carbon chain length, isomeric form, side-group modification, and cyclic structure. The effects of mineralogical characteristics on flotation response also were considered. Results of this systematic evaluation provide guidelines for selecting efficient substitute reagents and fundamental data for further research on improved flotation technology.

Jan 1, 1983

Jan 1, 1978

Executive Joseph L Gillson, Chairman, J W Woomer, Vice-Chatrman, John S Bell, Walter R Hibbard, Jr. R R McNaughton Finance John P Hammond, Chairman, James C Gray, J S Smart, Jr Investments Gall F Moulton, '63, Chairman, Andrew Fletcher, '62, John M Lovejoy, '61, George I Brigden, ex off as AIME Treasurer, John P Hammond, ex off as Chairman, AIME Finance Committee Award Committees Grouped together at end of list Cooperation with the Canadian Institute of Mining and Metallurgy and the Mining Society of Nova Scotia R R McNaughton, Chairman, C Gerow, Sherwin Kelly

Jan 1, 1960

University of Alabama-University, Alabama, Mining and Metallurgical Society, William L Mason University of Alaska-College, Alaska, Mining Society of the University of Alaska, E H Beistline University of Arizona-Tucson, Arizona, Miners Society, S L Smith Birmingham-Southern College-Birmingham, Alabama, Pick and Hammer Club, Daniel D Arden University of California-Berkeley, California, Mineral Technology Association, Jack Washburn Carnegie Institute of Technology-Pittsburgh, Pennsylvania, The Metals Club, Gerhard Derge Case Institute of Technology-Cleveland, Ohio, Case Metallurgical Engineering Society, Robert F Hehemann City College of New York-New York, New York, CCNY Student Chapter AIME, Daniel T O'Connell

Jan 1, 1957