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NEW MEMBERS The following list comprises the names of those persons who became. members during the period Sept. 10, 1918, to Oct. 10, 1918. ADDISON, HERBERT, Vice-pres. and Mgr., Big Horn Collieries Co., 412 Colorado Bldg., Denver, Colo. ALLAN, .ANDREW, JR A. Allan & Son, Harrison, N. J. AMI, HENRY M., Charge of War Metals and Minerals, British Embassy, Washington, D. C. ALTHAR, HOMER C., Mill. Engr., The Lorain Coal & Dock Co., Bridgeport, Belmont Co., Ohio. BASER, JOHN T Pres., J. T. Baker Chemical Co., Phillipsburg, N. J. BARBA, W. P., Lieut. Colonel, Ordnance, U. S. A., 2301 Connecticut Ave., Washington, D. C. BENSON, JOHN PATS Min. Engr., Aurora Cons. Mines Co., Aurora, Nev., BOSWELL, H. F Resident Inspector, Southern Railway System, St. Louis, Mo. BRAUCHER, PETERS., Foundry Mgr., Philadelphia & Reading Ry. Co., Sixth & Perry St., Reading, Pa.

Jan 11, 1918

By R. S. Hutton

Jan 1, 1937

NEW MEMBERS The following list comprises the names of those persons Who became members during the period July 10, 1918, to Aug. 10, 1918. ARCHER, EUGENE G., assayer and Chem., Granby Cons. Min. Smelt. & Power Co.,Anyox, B. C., Canada. BAKER, ROBERT C Mech. Engr. and Draftsman, Moctezuma Copper Co., Nacozari, Son., Mexico. BARNES, EDWARD A Supt., Fort Wayne Works, General Electric Co., Fort Wayne, Ind. BARNHART, EDWIN Engr. of Tests, Bethlehem Steel Co., Sparrow's Point, Md. BENSLEY, MAURICE D Pres. and Mgr., Frontier Brass Foundry, Inc., Niagara Falls, N. Y. BRADLEY, JOHN C Met., The American Brass Co., Waterbury, Conn. BRAGG, C. T Works Mgr., Michigan Smelt. & Refin. Co., Detroit, Mich. BRYMER, GEORGE W Min. Engr., 922 Union National Bank Bldg., Scranton, Pa. CHIVVIS, NORMAN Met. Engr., More-Jones Brass & Metal Co., 3144 North Broadway, St. Louis, Mo. CRAWFORD, R. D Prof. of Mineralogy & Petrology, Univ. of Colorado, Boulder, Colo.

Jan 9, 1918

Jan 1, 1906

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

Jan 1, 1967

ALABAMA. Aldrich, Aldrich, W. F. Anniston, Noble, A. E. Auburn, Brown, R. L. Bessemer, Abbott, C. E., Ferguson, V. Birmingham, Aldrich, T. H., Aldrich, T. H., Jr., Allen, A. W., Bowron, J., Burbidge, T. A., Crawford, G. G., Crockard, F. H., Davis, F. H, Dimmick, F: D., Ellis, E. E., Geismer, H. S., Hiller, E., Johnson, G. R, Ludwig, C. P., McCormack, G. B., McCrery, Peters, R, Jr., Phillips, W. B., Pill, J. R., RamSay, E. Coal City, Pattberg, 0. F. E-msley, Wil¬liams, E. P. Helena, Squire, J. Holt, Shook, J. W. Huntsmlle, Moss. Ironton, Hudson, J., B. Lehigh, Toulmin. Bock Bun, Garvin, J. M. Woodward, Wood¬ward, A. H.

Jan 1, 1910

Jan 1, 1917

Jan 6, 1976

Jan 1, 1950

Jan 1, 1893

ALABAMA America.-Foreman, J. T. Ashland.-Sturdevant, J, C. Altalla; Henderson, R. M. Bessemer.-Ball, E. M. Maschmeyer, W. L. McKenzie, W. C., Jr. Birmingham.-Abbott, C, E. Aldrich, T. H. Aldrich, T. H., Jr. Aufderhaar, H. C. Berg, H. A. Blair, C. S. Bush, M. W. Clark. G. H.

Jan 1, 1929

Jan 1, 1905

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

By William H. Spice

No devclopment of major importance has been made in the south central fault-line district of Texas during 1939. Four new fields have been discovcred, all of which appear to be of minor importance, with small wells in the Navarro sand, the Taylor marl or the Austin chalk. Drilling along the fault line has not developed any new prospects in the Edwards lime, the most prolific producing horizon of the district. At the close of the year, a few deep tests for lower producing horizons have been projected and should prove to be of interest, and plans are under way for further development of the Pearsall field, which has been under the control of a single company until recently. Production from the 46 producing fields was maintained at 8,460,000 bbl. for the year, a decrease of approximately 400,000 bbl. under 1938. This decrease is due in part to natural decline of production and in part to decreased allowed production. Approximately 55 producing wells were completed on proven acreage in the Darst Creek and Salt Flat fields. No new lease plays were made during the year, although approximately the same amount of land, 600,000 acres, remained under lease during the year. Some geophysical operations of various types were carried on along the fault-line area itself and also in the Edwards plateau and in the area south and southeast of the main fault line.

Jan 1, 1940

By William H. Spice

No devclopment of major importance has been made in the south central fault-line district of Texas during 1939. Four new fields have been discovcred, all of which appear to be of minor importance, with small wells in the Navarro sand, the Taylor marl or the Austin chalk. Drilling along the fault line has not developed any new prospects in the Edwards lime, the most prolific producing horizon of the district. At the close of the year, a few deep tests for lower producing horizons have been projected and should prove to be of interest, and plans are under way for further development of the Pearsall field, which has been under the control of a single company until recently. Production from the 46 producing fields was maintained at 8,460,000 bbl. for the year, a decrease of approximately 400,000 bbl. under 1938. This decrease is due in part to natural decline of production and in part to decreased allowed production. Approximately 55 producing wells were completed on proven acreage in the Darst Creek and Salt Flat fields. No new lease plays were made during the year, although approximately the same amount of land, 600,000 acres, remained under lease during the year. Some geophysical operations of various types were carried on along the fault-line area itself and also in the Edwards plateau and in the area south and southeast of the main fault line.

Jan 1, 1940

By John T. Awald

The Bradshaw Mountains of west-central Arizona cover an area of 1600 square miles and contain numerous old mines and prospects. The area has been geochemically sampled on a reconnaissance basis to relate mineralized areas to regional structure and rock types. Copper analyses of stream sediments have been classified and contoured to show the distribution of low and high backgrounds and low, intermediate, and highly anomalous areas. Contoured results are compared to geology and known mines. Several prospecting areas are indicated.

Jan 1, 1972

ALABAMA Altoona.-Cain, J. America.-Foreman, J. T. Anniston.-Cowie, L. K. Foster, R. N. Rogers, R. F. White, H. E. Ashland.-Sturdevant, J. C. Bessemer. Ball, E. M. McKenzie. W. C., Jr. Morgan, C. Birmingham.-Abbott, C. E. Adler, J. E. Aldrich, T. H. Aldrich, T. H., Jr. Ashton, J. J. Burgin, G. E.

Jan 1, 1923

By M. D. Flavel

The paper describes the physical aspects of the compression and impact crusher types along with the information needed to apply, install and operate them to best achieve designed performance levels. It reviews key performance parameters such as energy size relationships for crushing processes and how automation devices can optimize machine productivity. Weaknesses of existing application engineering methods are discussed. The use of pilot plant information and appropriate laboratory testing procedures are reviewed from the point of view of the application design engineer so that the best type of machine can be selected for a proposed installation.

Jan 1, 1982

ALABAMA Altoona -Cain, J Anniston-Cowie, L K Hermrod, A A White, H E Bessemer -Abbott, C E Ball, E M Mitchell, F R Thompson, N E Birmingham -Adler, J E Aldrich, T H Aldrich, T H, Jr Blackburn, A R Bush, M W Clark, G H Cowrn, P G Crane, W R Crawford, G G Crockard. F H

Jan 1, 1923