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Dues: Arrears........................................... $ 4.878.18 Current........................................... 96.174.46 New Members..................................... 6.281.50 Dues for future periods received in advance........... 1.745.28 $109.079.42 Initiation Fees.................................................. 7,879.00 Magazine Receipts: Advertising Gross Receipts.......................... $39,247.77 Magazine Sales.................................... 3,820.04 43.067.81 Sale of Transactions Volumes 75 and 76............; .... $ 2,525.93 Sale of Transactions and Special Editions............... 7,586.00 Sale of Year Book.................................... 141.60 Sale of Authors' Reprints............................. 2,032.97 Sale of Pamphlets.................................... 1,346.29 Sale of Bindings...................................... 4,551.90 18,184.69 Interest Received: On Bank Balance and Temporary Investments......... $ 2,780.75 On Life Membership Fund.......................... 2,106.43 On James Douglas Library Fund..................... 5,399.45 On General Reserve Fund........................... 1,995.33 12.381.96 Miscellaneous Receipts........................................... 131.16 Total Receipts................................................ $190,624.04

Jan 1, 1929

By K. Osseo-Asare

The thermodynamics of solid-aqueous solution equilibria up to 200°C In the systems Me-NH3 H2 0 (Me=Cu, Ni, Co) are summarized with predominance area diagrams generated with the DIAGRAM computer program. The implications of the diagrams to ammonia hydrometallurgy are discussed.

Jan 1, 1981

Truman H. Aldrich W. Lawrence Austin W. S. Ayres John Henry Banks Andrew A Blair Walter M. Brodie R. C. Canby

Jan 1, 1932

By Robert Glass Cleland

[CHAPTER PAGE I Anson Greene Phelps II A Family Enterprise III Railroads, Coal, and Lumber VI William E. Dodge, Merchant and Philanthropist]

Jan 1, 1952

Professional Paper 112. Upper Cretaceous Floras of the Eastern Gulf Region in Tennessee, Mississippi, Alabama, and Georgia, by E. W. Berry. 177 pages, 33 plates, 12 text figures. Professional Paper 113. Iron-depositing Bacteria and Their Geologic Relations, by E. C. Harder, 89 pages, 12 plates, 14 text figures.

Jan 12, 1919

By G. M. Wells

A view of the map of Floridat shows the phosphate-deposits to lie on the western side of the State, extending southward over

Jan 1, 1896

By J. J. Knoerzer

A full-scale operational test was conducted on the Coaltek preheating and pipeline charging system at the Semet-Solvay Div. of Allied Chemical at Ironton, Ohio, for the purpose of determining whether a high-quality blast furnace coke could be made from blends containing at least 75% Illinois No. 6 Coal and at the same time reduce air pollution during the charging of the ovens. The coke produced had similar physical characteristics as compared to our conventional wet-charged coke, with the exception of smaller size for the preheat coke. Air pollution during charging was con- trolled and there were no serious operating problems. The coking time was reduced 25% from our normal 17 hr for wet charging to 12.8 hr for preheated charges. The blast furnace performance with preheat coke was satisfactory.

Jan 1, 1976

JAMES GAYLEY (President), R W RAYMOND (Secretary), FRANK LYMAN Treasurer) T A RICKARD NEW YORK, N Y CHARLES H SNOW NEW YORK, N Y R W RAYMOND NEW YORK, N Y (Terms expire February, 1906 ) JAMES GAYLEY NEW YORK, N Y FRANK KLEPETKO NEW YORK, N Y FRANK LYMAN NEW YORK, N Y (Terms expire February, 1907 ) JAMES DOUGLAS NEW YORK, N Y JAMES F KEMP NEW YORK, N Y ALBERT R LEDOUX NEW YORK, N Y (Terms expire February, 1908 ) Council PRESIDENT OF THE COUNCIL JAMES GAYLEY VICE-PRESIDENTS OF THE COUNCIL GEORGE W MAYNARD NEW YORK, N Y JULIAN KENNEDY PITTSBURG, PA CHARLES D WALCOTT WASHINGTON, D C (Terms expire February, 1906 ) WILLIAM P BLAKE TUCSON, ARIZ THOMAS F COLE ,DULUIH, MIFF IRVING A STEARNS WILKES-BARRE, PA (terms expire February, 1907 )

Jan 1, 1910

Meeting of Mar. 27, 1914.-President Thayer announced the appointment of H. S. Munroe as a member and E. Gybbon Spilsbury as Chairman of the Library Committee of the Institute. The President announced the appointment of the Committee on Papers and Publications, the Technical Committees, the Committee on Increase of Membership, and the Committee on Junior Members and Affiliated Student Societies. The President announced the appointment of Dr. George F. Kunz as a member of the Reception Committee of the International Engineering Congress, 1915. It was voted that the Institute accept the invitation of the Mining and Scientific Press to occupy space at the Panama-Pacific Exposition next to them and avail itself of the service of their representative to receive and register members of the Institute who visit this space during the exposition.

Jan 5, 1914

Members whose deaths were reported from Apr 7, 1923, to Apr 5, 1924 Elected Died 1918 ADKINSON, HENRY M 1923 1900 AGNEW, WILLIAM C 1923 1894 ASHLEY, H H 1923 1897 AUSTIN, KENNETH 1924 1903 AYERS, EMMA L C 1923 1913 BAECHTOLD, CHARLES A 1924 1900 BAIN, HUGH A 1924 1919 BASHORE, E GORGAS 1923 1920 BATTELLE, GORDON 1923 1923 BAYLES, GERARD L 1924 1881 BROCK, CHARLES 1923 1903 BROOKE, HENRY 1923 1876 BROWN, HARVEY H 1923 1904 BROWN, THOMAS E 1923 1919 BUCK, DANIEL M 1924 1906 CHALMERS, THOMAS S 1924 1881 CLEMES, JOHN H 1923 1896 COLLINS, HENRY F 1924 1871 COURTIS, WILLIAM M 1923 1915 CRESSON, B F, JR 1923 1921 CROWE, WALDO P 1923 1920 DARNELL, J ORA 1923 1911 DAVIS, HENRY G 1924 1918 DAVIS, ROBERT S 1923 1916 DEANE, WILLARD A 1924 1901 DEMPSTER, WILLIAM 1924 1911 DEVEREUX, W B, JR 1923 1895 DICKENSON, F M 1924 1904 DRUM, FRANK G 1924 1875 DUDLEY, P H 1924 1916 EATON, ARTHUR 1923 1919 EATON,SHERMAN 1924 1911 GRIFFITH, WILLIAM 1924 1919 HILSDALE, PAUL 1923 1922 HODGES, I F 1923 1916 HOFIUS, MAX, T 1924 1914 HUGHES, HOWARD R 1924 1919 HUMMEL, CARL B 1923 1874 HUNT, ROBERT W 1923 1921 JONES, ERNEST EVANS 1923 1917 JOSLIN, CHARLES T 1923 1918 KASJENS, JACOB G 1923 1899 KIRKEGAARD, PETER 1924 1920 KLAUS, HARRY C 1923 1892 KNOERTZER, HENRI1924

Jan 1, 1923

Established as a Division September 27, 1949 LeRoy Scharon, Chairman C. M. Cooley, Secretary 29 West 39th Street New York 18, N Y

Jan 1, 1952

[MININQ METHODS WILLIAM J. COULTEB, Chairman PHILIP B. BUCKY, Vice-Chairman LELAND A. WALKER, Vice-chairman ) CLYDE E. WEED. Vice-Chairman CHARLES F. JACKSON, Secretary]

Jan 1, 1946

By Eugene Stebinger

PAGE Introduction.............. 890 Position oF Montana in the Western Coal Province*..... 890 Montana's Total Coal Tonnage.........891 THe Coal-BearINg Formations,........891 General Statement............. 891 Kootenai Formation............ 895 Eagle Sandstone............896 Judith River Formation............ 896 Homethief or Lennep Sandstone.........897 Lance Formation..........• 897 Fort Union Formation............ 898 Tertiary Lake Beds............. 899 Distribution of the Coal Fields.......... 899 Classification of Montana Coals.........900 General Statement............. 900 Comparison of Chemical Analyses and Heating Values..901 DESCriPTions of the CoaL Fields.......... 905 • Fields Containing Bituminous and Higher Grade Coals..905 Bridger Field............. 905 Stillwater Field............ 906 Electric Field............ 907 Trail Creek Field...........908 Gallatin Field............909 Lombard Field...........910 Great Falls Field............ 910 Lewistown Field............ 911 Valier Field............. 912 Blackfoot Field............ 913 Fields Containing Sub-bituminous Coal.. 913 Bull Mountain Field..........913 Red Lodge Field............ 914 Missoula and Drummond Fields......... 916 Milk River Field............ 916 The Eastern Plains Region of Lignite and Sub-bituminous Coal.... 917

Jan 1, 1914

New Mexico School of Mmes, and State Bureau of Mmes and Mineral Resources, Socorro, N. M E. H Wells, President and Director Available publications of the State Bureau of Mines and Mineral Resources of the New Mexico School of Mines are: Bulletin 4, Fluorspar in New Mexico (1928), 60 cents; 5, Geologic

Jan 1, 1933

Truman H. Aldrich W. Lawrence Austin W. S. Ayres John Henry Banks Wrn de L Benedict Andrew A Blair Walter M. Brodie H. H. Burden Charles Butters

Jan 1, 1932

Truman H. Aldrich John H. Allen W. Lawrence Austin W. S. Ayres John Henry Banks Wm de L. Benedict Robert Bentley Andrew A Blair Walter M. Brodie

Jan 1, 1934

Truman H. Aldrich John H. Allen W. Lawrence Austin W. S. Ayres John Henry Banks Wm de L. Benedict Robert Bentley Andrew A Blair Walter M. Brodie

Jan 1, 1934

By Chung Yu Wang

STUDY of two recent papers and a recent book leads one to raise anew the question-Why are certain regions of the earth more mineralized than others?

Jan 5, 1953

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

NEW MEMBERS The following list comprises the names f those persons who became members during the period of Dec. 10, 1917, to Jan. 10, 1918. ARLUCK,- A. A., Headquarters Co., 66th Artillery Brigade, 41st Division, Care Postmaster, New York, N. Y. BUCK, LEONARD J Park & Prospect Ave., Bethlehem, Pa. BULL, FREEMAN N., Min. Engr., Robert W. Hunt & Co., 310 Wall St., Joplin, MO. BURGESS, ELISHA PAYNE JEWETT, Pres. & Mgr., Montana Consolidated Copper Co., Care Clark Dodge & Co., 51 Wall St., New York, -N. Y. CAMPBELL, THOMAS E Governor of Arizona, State House, Phoenix, Ariz. CARTWRIGHT, F. 0., Asst. Chief Clerk, The Braden Copper Co., Bancagua, Chile. CASH, FRANK E., Engr. & Asst. Supt. of Mines, Alleghany Ore & Iron Co., Lignite, Botetourt Co., Va. CRITCHLOW, EDWARD B., Pres., Conkling Min. Co., 307 McCormick Bldg., Salt Lake City, Utah.

Jan 2, 1918