The Iron Age January-June 1911: Vol 87 Index

THE IRON AGE VOL. LXXXVII. JANUARY—JUNE, 1911. NEW YORK: DAVID WILLIAMS COMPANY, 239 West 39th Street. mae TE A. Aberthaw Construction Company : Repairing Concrete Floors, Apr. 20 p 987 Accelerated Corrosion June 29 p. 1555 Accidents : And Safeguards in England, Mar. 23 Test of Metals, P 703 Anti-Accident Inspection Service, Feb. 2 p 288 Compensation and Concilation, Apr. 13 p 883 Compensation in Minnesota, Mar. 2 p 551 Compensation Legislation in New Jer- sey and Ohio, Apr. 6 p 825 Cream City Preventer,* May 4 p 1103 Employers’ Liability and Compensa- tion Systems, Feb 23 p 498 European Methods of Prevention and Relief, Mar. 16 p 667 First Aid a Ground for June 29 p 1553 Frick Coke Company's Safety Com- mittee, May 18 p 1216 In Industrial Plants, Jan. 19 p 214 Industrial Inspection and Prevention, Mar. 30 p 760 Industrial Safety p. 587 Inspection System to Prevent Indus- trial, Feb 2 p 290 Mechanical Engineer and Prevention of,* Feb 16 p 434 Model Compensation p 498 New York Compensation Law Void, Mar. 30 p 704 York Workmen’s Compensation Decision, Mar. 30 p 759 Damages, Association, Mar. 9 Code, Feb. 23 New Prevention in the Machine Shop,* May 18 p 1204 Private Relief System, Morgan, Jan. I2 p 159 Safety Devices for Iron Mine Work- men, June 22 p 1539 Septic Poison’s Needless Cost in _ Works, Jan 12 p 121 Suggestive Anti-Accident Epigram,* Apr. 27 p 1035 Workmen’s Compensation in States, Apr. 6 p 842 Works Insurance, Apr. 6 p 818 Acheson Lubricants, Apr. 13 p 93! Acid Fume Removing Devices, mann,* Mar. 16 p 667 Acme Blueprint Machine,* Feb. 2 p 329 Acme Core Machine Company : Core Machine,* Jan. 5 p 88 Acme Machine Tool Company : — Turret Lathe,* Jan. 26 p 283 Adams Company: Farwell Squeezer Molding Machines,* Jan. 5 p 83 Adell Bros. Mfg. Company: Paramount Indestructible Clamp,* Apr. 6 p 867 \dministration as a Constructive Sci- ence, Works, Jan. 26 p 248 Seven Ober- Steel \dvisory Board, Concentrated, May 4 p 1055 \erial Craft, Metal Frames for, Apr. 6 p 819 Aetna Foundry & Machine Company: Billet and Scrap Hauls,* Apr. 13 p 933 Large Multiple Punch,* Apr. 6 p 860 African Copper, Jan. 26 p 245 African Mines, Underground Shops in South, Mar. 30 p 759 Air Compressor Regulation,* June 22 p 1536 INDEX. Illustrated articles indicated by * Air Compressor, Roberts Motor,* Jan. 12 p 164 Air Cooling System for Sheet and Tin Plate Mills, May 4 p 1069 Air Furnace Dimensions, Calculation of, May 25 p 1257 Air Furnaces, Oil Fuel for, June 15 p 1465 Ajax Mfg. Company: Hot Saw and Burring Machine,* Feb. 2 p 318 Huge Forging Machine,* Mar. 30 p 800 Alabama Consolidated Coal & Iron Co.: Southern Companies May Merge, Apr. 6 p 825; Apr. 13 p 907 Alabama, Pig Iron Costs in, May 11 p 1124 . Alaska Copper Coming, Apr. 6 p 823 Alexander, John: Machine versus Hand Molding, June 29 p 1569 Algoma Steel Company: Coke Plant,* Apr. 20 p 982 Allan, A., & Son: Novel Use of Bronze,* June 15 p 1478 Allen-Bradley Company : Electrical Products. Apr. 21 p 1041! Allied Machinery Company of America: To Market American Machinery Abroad, May 25 p 1239 Allis-Chalmers Company : Edison Giant Roll Patents Sustained, June 22 p 1520 Allner-Boswell Radius Planer ment,* Apr. 27 p 1038 Alexander, John: Experience with Jan. 12 p 156 Alliance Machine Company : Crane Business, Mar. 9 p 627 Foundry Cranes,* Jan 5 p 9! Allis-Chalmers Company : Life of Electrical Apparatus, Jan. 12 p 122 Alloys: Castings from Nonferrous, Jan. 12 p Attach- Molding Machines, 154 Outerbridge Silicon, Jan. 5 p 44 eae Slags, Effect of, Mar. 57 Almond, . R., Mfg. Company: Tool Holder.* Mar. 23 p 742 Alumaloyd Products Company, Feb. 9 P 373 Alvey-Ferguson Company : Removal, May 4 p 1107 American Blower Company: Business Outlook, Feb. 2 p 305 Electric Forge Blowers,* June 29 p 1576 Reversible Window Ventilating De- vice, May 25 p 1281 Special Centrifugal Blower,* June 1 p 1327 Ventura Disk Fan,* May 18 p 1222 American Boiler Manufacturers’ Meet- ing, June 22 p 1530 American Brass Company : Annual Report, Feb. 23 p 497 American Can Company : Annual Report, Feb. 23 p 490 American Electric Furnace Company : Electrical Steel Production at Dom- meldingen, May 11 p 1126 American Electrochemical Society : Convention Programme, Mar. 30 p 815 Electric Furnace Discussion, Jan. p 261 American Foundrymen’s Association : Convention Programme, May 18 p 1197 Convention Registration, May 5 p 1121 Convention Proceedings, May 25 p 1250; June 1 p 1328 32399 Sent © hams ©) hand American Gas Furnace Company: Automatic Temperature Controlling Instrument,* June 8 p 1418 American Institute of Mining Engineers : Convention Programme, May 11 p 1157 Dr. R. W. Raymond Resigns, Apr. 6 p 821 Fall Meeting, June 22 p 1512 Officers, Mar. 2 p 534 To Change Its Name, June 1 p 1361 American Iron & Steel Association : Our Record Production of Steel in 1910, Mar. 23 p 704 American Iron & Steel Mfg. Company : Annual Report, Feb. 16 p 423 American Iron and Steel Institute: Announcement, April 27 p 1018 Annual Meeting, May 4 p 1056 Considers Welfare Work, May 4 p 1056 Officers, June 1 p 1297 American Iron, Steel & Heavy Hard- ware Association Convention, June I p 1297 American Machinery In Europe, May 18 p 1198; June 15 p 1481 American Mining Congress: Coal Miners’ Compensation Mar. 16 p 661 American Motor Truck Company: Important Commercial Automobile Consolidation, Mar. 30 p 777 American Pulley Company : Pulleys with Cork Set in Faces,* May Il p 1167 American Radiator Company: Annual Report. Mar. 16 p 679 American Rolling Mill Company : Equipment of Hagan Furnaces, Mar. 9 p 606 American Sheet & Tin Plate Company : Air Cooling System, May 4 p 1069 Announcement, June 8 p 1423 Apollo Galvanized Sheets for Cul- verts, Mar. 2 p 535 Apollo Sheet Steel Calendar, Jan. 12 Plan, p 14 Starts Gary Plant, June 8 p 1399 American Society for Testing Materials: Announcement, Feb. 2 p 313 Coming Convention, Apr. 27 p 1035 Convention Programme, May 4 p 1078; June I p 1297 American Society of Engineer Drafts- men, June 1 p 1346 American Society of Mechanical En- gineers: Convention Proceedings, June 1 p 1308; June 8 p 1411* Monthly Meeting, Feb 9 p 374 Spring Meeting Announcement, Mar. 2, p. 545; Apr. 27 p 1033 American Specialty Stamping Company : Obermann Acid Fume Removing De- vices,* Mar. 16 p 667 American Spiral’ Pipe Works: Large Sizes of Lap Welded Pipe,* Feb. 2 p 324 American Steel Foundries: Davis Cast Steel Car Wheel,* May 4 p 1090 Large Castings in Fast Time, June 29 p 1588 American Steel & Wire Company: Museum of the Wire Industry,* 22 p 1522 American Supply & Machinery Manu- - facturers’ Association: Bureau of Promotion, Feb. 16 p 406 June Convention Announcement, Feb. 2 p 323 Convention Proceedings, April 6 p 840; April 13 p 904 iv American Tobacco Decision, June 1 p 1296 American Tool Works Company : High Duty Lathe,* June 1 p 1363 Lathes,* Mar. 2 p 546 American Wire Brush Company : Purchased by the Osborn Mig. Com- pany, Apr. 13 p 900 Analyses : Lake Superior Iron Ore, Apr. 13 Pp go06 Standard for Foundry Coke, June 22 P 1515 Analysis Books of Lake Superior Ores, Mar. 9 P 573 Pot Andrews Side Frame Patent Sustained, June I p 1347 Angle Steel Tool Company : Tool Truck,* June 29 p 1575 Annealing Malleable Castings, Mar. 23 p 726;* April 20 p 948 Anniversary, Notable, April 13 p 883 Anthony, Prof. Gardner C.: Time Factor and Clearance in Punch- ing Plates,* June 15 p 1480 Anti-Boycott Decision, Noteworthy, Jan. p 232 Anti-Trust Cases, Feb. 23 p 458 Anti-Trust Cases, Reason in, May 18 p 1180 Anti-Trust Decisions, Application of the, June 8 p 1378 Apprenticeship : Sinead for Broad Foundry Train- ing, Feb 2 p 311 Navy Yard, April 6 p 850 Novelty in Systems, Mar. 9 p 57! Pennsylvania Railroad Company, Apr 6 p 851 Westinghouse System,* April 6 p 848 Arcade Mfg. Company : Molding Machines,* Jan. 5 p 88 Molding Thin Castings on a Jarring Machine,* April 20 p 980 Rotary Sand Sifter,* April 27 p 1042 Arctic Circle, Iron Mining Beyond the,* Mar. 9 p 608 Ardelt, R.: Cast Iron Pipe Molding,* May 4 p I 098 Ardrey, R. L.: Chicago Iron Trade-in 1910, Jan 5 p60 Arendals Power Company : Electric Iron and Steel in Norway, Feb. 2 p 291 Armstrong-Blum Mfg. Company: High-Speed Saw with Automatic Stock Feed,* June 1 p 1364 Association of American Steel facturers: Annual Meeting, Mar. 9 p 595 Atherton, L. M.: Copper Trade in 1910, Jan. 5 p 63 Atha Tool Company: Automatic Handle Sander,* May 18 p 1218 Atlantic City Railway Convention Ex- hibits, June 22 p 1518 Atlas Car & Mfg. Company: Foundry Cars,* Jan. 5 p 92 Auel, C. B.: Machine Tool Arrangement, May 25 p 1278 Auto Sand Mixer,* Jan. 5 p 112 Autogenous Welding Company: High Duty Polishing Machine,* Mar. 23 Pp 735 Autogenous Welding Equipment Com- pany, Jan. 5 p 49 Automatic Transportation Company : Electric Freight Truck,* May 11 p 1161 Automobiles : Advantages of Worm Drive, May 4 Dp 107 An Economic Good, Jan. 19 p 175 German Depreciation and Repair Cost, May II p II51 Growing Use of the Industrial, Jan. 12 p 121 Important Commercial Consolidation, Mar. 30 p 777 Makine Duplicate Parts,* Mar. 9 p 606 Manu- JANUARY-JUNE, 1911. New Art in Building, May 11 p 1124 Notes on Motor Truck Performances, Jan. 12 p 145 Standardization by Automobile gineers, Apr. 6 p 857 En- B. Babbitt Metal Formula, “Original,” May 18 p 1202 Babcock & Wilcox Company: Battleship Delaware Boiler Accident, Mar. 30 p 783 Badge, F. J.: Oilstone Holder,* Apr. 13 p 93! Bailey Sheet Furnace Equipment, May 25 p 1258 Baily, Thaddeus F.: Electric Furnace,* May 4 p 1094 Baird Machine Company: Improved Tumbling Barrel,* Feb. 23 p 4890 New Ball Burnishing Barrel,* Apr. 27 p 1033 Baker, W. J.: Hammer Flue 1274 Baldwin, A. S., & Co.: Reilly Friction Clutch,* Feb. 23 p 490 Baldwin Locomotive Works: Annual Report, Mar. 30 p 777 Labor Troubles, June 15 p 1463; June 29 p 1593 Locomotives Built in 1910, Jan. 12 p 151 New Incorporation, June 29 p 1577 New Interests In, May II p 1165 Ball Burnishing Barrel, New Baird,” Apr. 27 p 1033 Bands and Boxes, Diamond Slip-Over,* Jan. 5 p 115 Baraboo District; Iron Ore in Hundreds of Millions of Tons,* Mar. 9 p 618 Barb Wire Machine, Blashill & Gray,” Jan. 5 p53 Barnes Drill Company: Motor-Driven Gap Lathe,* Jan. 26 p 281 Interesting Application of a Tapping Machine,* June 29 p 1580 Barnes, W. F. & John, Company: Special Horizontal Drilling Machine,* Mar. 9 p 617 Barrel, New Baird Ball Apr. 27 p 1033 Barrow Hematite Steel Company, Ltd.: 3ritish Steel Companies Not Pros- perous in 1910, Mar. 16 p 658 Barry & Zecher Company: Zecher Cupola,* Jan. 5 p 98 Bartlett, C. O., & Snow Company: Mechanical Coke Quencher,* June 22 Pp 1531 Bars and Shapes from Waverly Ware- house, Extras on, May I1 p 1143 Bassett-Presley Company: Purchased by Carnegie Steel pany, June 15 p 1465 Bath Grinder Company: Duplex Internal Grinders,* Mar. 23 p 736 Batteries, Storage, Feb. 23 p 474 Battleship Delaware Boiler Accident, Mar. 30 p 783 Battleship Maine, Raising the,* June 8 P 1430 Bayonne Steel Casting Company: Cleaner,* May 25 p Burnishing,* Com- Features of a Modern Steel Foun- dry,* April 6 p 852 Bates Machine Company: Improvement in Feed Water Heat- ing,* June 29 p 1592 Bauer and Wetzel: Injuries to Tender Wheel Tires Through Strong Local Cold Work,* June 29 p 1577 Beaman & Smith Company : Machine for Boring Engine Valves,* May 25 p 1282 Bearing, Hill Rolling Mill,* Jan. 5 p 40 Belgian Iron and Steel Production in 1910, June 29 p 1567 Belgian Supplies of Iron Ore, May 18 p 1202 Bellows, Osborn Molders’, Mar. 2 p 548 Belt Factory at Passaic, N. J., Dick, May 18 p 1207 Bench, Oliver New Universal Saw,* Jan. 5 p 109 Bender and Straightener, New Under- wood Power,* Mar. 9 p 596 Bender, Wallace Hand Power Mar. 30 p 792 Benjamin Electric Mfg. Company: Tungsten Mill Cluster,* Feb. 2 p 331 Berg, P. T.: Improved Cinder Car,* Mar. 23 p 739 Berger Mfg. Company: Raydiant Sidewalk Lights for Interior Use, Feb. 2 p 306 Berlin, American Association of Com- merce and Trade, Apr. 27 p 1040 Bessemer & Lake Erie Railroad: Tonnage, Mar. 9 p 585 Best, W. N.: Oil Fuel for Air Furnaces, June 15 Bar,* p 1465 Bethlehem Steel Company: Duplex Process,* Mar. 30 p 7&4 Bethlehem Steel Corporation: Annual Report, Apr. 6 p 845 Bettendorf Axle Company: Enlarged Steel Car Plant,* Apr. 6 p 858 Interesting Curtis Turbine tion,* Feb. 23 p 492 Betterment of Steel Works Labor Con- ditions, May 11 p 1144 Betton, J. M.: Installa- Drucklieb Multiple Injector Sand Blast,* Apr. 13 p 923 Drucklieb Sand Blast Specialties,* Jan. 5 p 103 Bickford Machine Company: New Antomatic Tap Fluter,* May 25 p 1281 Billet and Scrap Hauls, A&tna,* Apr. 13 P 933 Binders for Foundry Cores, May 11 p 1140 Birkinbine, John: Forty Years’ Progress in Pig Iron,* June 22 p 1516 Birmingham District, Steel Corporation Construction in the, May 4 p 1089 Blackwell, Geo. G., Sons & Co., Ltd.: Titanium in Steel and Iron, Apr. 20 992 Blair Engineering Company: Open Hearth Furnaces with Magne- site End Blocks, Mar. 23 p 716 Blaisdell Machinery Company, May 11 p 1126 Blashill & Gray: Barb Wire Machine,* Jan. 5 p 53 Blast Furnaces: See Furnaces, Blast. Blast Pressures, Sand, Feb. 9 p 350 Blast, Sand, Drucklieb Multiple Injec- tor,* Apr. 13 p 923 Bliss, E. W., Company: Straight Sided Press of Unusual Pro- portions,* Jan. 5 p 45 Block, Patterson Six Sheave Steel,* Jan. 5 p 47 Blooming Mill with Novel Features, Feb. 2 p 310 Blowers: American Electric Forge,* June 29 p 1576 Buffalo Steel Plate Pressure,* Feb. 2 Pp 331 Connersville Applied to Vacuum Cleaning,* May 11 p 1166 Connersville Rotary Positive,* Jan. 5 p 102 Economy Tests of a Turbine-Driven Furnace, May 4 p 1070 Green Foundry,* Mar. 9 p 621 Special Centrifugal,* June 1 p 1327 Sturtevant Foundry,* Jan. 5 p ror Turbine Driven Gas, Apr. 13 p 933 Blowing Engine Practice, Future in, June 15 p 1463 Blueprint Machine, Acme,* Feb. 2 p 329 Boedwicker, G. A.: Metal Rolling in the United States, Apr. 20 p 966 Boiler Accident, Battleship Delaware, Mar. 30 p 783 Boiler and Machine Shops of Improved Construction,* Jan. 19 p 216 Boiler Feed Records, Analysis of,* Jan. I2 p 170 Boilermakers’ Association, International Master : Convention p_ 1383 ; Boiler Manufacturers’ Meeting, Amer- ican, June 22 p 1530 Boiler Performance, Remarkable, May 25 p 1238; June 22 p 1500 Boiler Repair Bolts, Diamond,* Feb. 9 Proceedings, June 8 p 388 re Boiler Shop and Dipping Tank, Cam- bria,* Mar. 16 p 668 Boiler Tubes, Process of Manufacturing Locomotive,* May 4 p 1104 Bolling & Lowe: British Iron Trade in 1910, Jan. 29 Bollman-Wilson Foundry Company: Punch with a 48,000-lb Body Casting,* June 29 p 1571 Bolt, Nut and Rivet Men Dine To- gether, Mar. 2 p 518 Bolts : Diamond Boiler Repair,* Feb. 9 p 388 Diamond Expansion Toggle,* Mar. 9 P 506 Bond, Vivian, & Co.: Pittsburgh Business, Apr. 20 p 987 Book Reviews: Analysis of Paints and Painting Ma- terials, Jan. 26 p 235 Applications Industrielles de I’ Electri- cité (Industrial Applications of Electricity), Mar. 16 p 645 A Practical Guide to Iron and Steel Works Analyses, Mar. 23 p 705 Backbone of Perspective, Feb. 9 p 370 Chemistry for Beginners, May 25 p 1260 Drop Forging, Die Sinking and the Machine Forming of Steel, Mar. 9 P 573 Dynamo Electric 5 P Machinery, Mar, 23 _ 5 p Electric Hallway p 1579 Dictionary, June 29 Elementary Practical Mechanics, Feb. 16 p 407 Engineering Directory for 1911, Mar. 9 Pp 573 Engineering Index Annual, 1910, Mar. 16 p 645 Fowler’s Mechanics’ and Machinists’ Pocket Book and Diary for 1911, Jan. 12 p 122 Homestead: the Households of a Mill Town, Mar. 30 p 7 Hydroelectric Practice, May 25 p 1259 Industrial Plants: Their Arrangement and Construction, Feb. 23 p 460 Introduction a la Métallographic Mi- croscopique (Introduction of Mi- croscopic Metallography), Jan. 12 p 122 Inventors and Inventions, Apr. 6 p 836 Iron Ore Manual of the Lake Supe- rior District, May 25 p 1260 Machine Shop Primer, Feb, 16 p 407 Mechanical Engineers’ Pocket-Book, : May 4 p 1056 Mechanics for Engineers, Mar. 23 p 705 Metal Statistics, Feb. 16 p 407 Monoplanes and Biplanes, June 29 p 157 9 Motion Study, May 25 p 1260 Outlines of Iron and Steel Metallurgy, (Grundztige des Eisenhiittenwe- sens), Jan. 26 p 235 Pocketbook of Mechanical Engineer- ing, Jan. 26 p 235 Ponular Handbook for Cement and Concrete Users, Feb. 23 p 460 Practical Alloying, Feb. 9 p 370 JANUARY-JUNE, 1911. Practical Stamp Milling and Amalga- mation, Feb. 9 p 370 Production of Malleable _ May 25 p 1259 s Scientific American Cyclopedia of Formulas, Jan. 26 p 235 Scientific Management and Railroads, Mar. 30 p 7 Smoley’s Parallel Tables of -Loga- rithms and Squares, Mar. 9 p 573 Statistics of the American and For- eign Iron Trades, Jan. 19 p 177 Textbook of the Elements of Machine Work, Apr. 6 p 836 Testing for Metallurgical Processes, Feb. 9 p 370 Textbook of the Principles of Ma- chine Works, Apr. 6 p 836 The Aeroplane, Mar. 9 p 573 The Iron Ores of Lake Superior, May 18 p 1215 The Life and Life Work of Charles B. Dudley, May 25 p 1260 The Steel Workers, Mar. 30 p 798 Welding, Feb. 9 p 370 Bope, Henry P.: Pittsburgh’s Position in Steel, P 304 Boring, Drilling and Milling Machine, Special Fosdick Horizontal,* May 4 p I107 Boring Mills: Cincinnati Planer Company,* Jan. 26 p 270 Cleveland Horizontal,* Jan. 5 p 47 Colburn Motor-Driven,* Mar. 9 p 617 Dresses Vertical, New,* Apr. 27 p 1025 Universal No. 3,* Mar. 30 p 790 Castings, Feb. 2 Borings, Briquettes from Cast, Jan. 12 p 1§2 Jorings, Briquetting Metal,* June 1 p 1344. Boston, Congress of Technology at, Mar. 9 p 592; Mar. 16 p 686; Mar. o p 788; Apr. 20 p 967 Bounties, Canada’s Iron and Steel, 13 p 921 Bounties May be Renewed, Canada’s Steel, Feb. 16 p 424 Boxes and Bands, Diamond Slip-Over,* Jan. 5 p 115 Apr. 3oycott, Bill to Legalize the, Feb. 16 p 423 4 Boycott Suit to be Retried, Famous Danbury Hat, Apr. 13 p 900 Bracket, Patterson Adjustable Electric Light,* Apr. 20 p 981 Bradlee & Co.: Chain Information, Jan. Bradley Mfg. Company: Heating Furnace Doors,* Jan. 12 p 168 Brake, Prony, May 25 p 1266 Brandon, George R.: Mechanical Charging of June'8 p 1426 Brass Melting Furnace, M. R. V..* Feb. 9 p 388 Brass Melting Furnaces, Jan. 5 p 82 Brass Mill, Electrically Driven,* Jan. 26 p 27 Bray, Thomas J. :* President of the Republic Iron & Steel Company, Mar. 23 p 704 Brayshaw, S. N.: Hardness of Quenched Tool Steels,* 5 p 67 Cupolas,* May 2 25 p 1256 Brazil, Itabira Iron Mines in, Apr. 27 p 1007 Brazilian Iron Mines, British Interests Acquire, Jan. 26 p 234 Bridgeport Safety Emery Wheel Com- pany : No. ™% Motor-Driven Grinder,* Mar. 30 p 803 Bridges: Essex-Merrimac Chain, May 4 p 1075 Quebec, Feb. 2 p 313; Feb. 16 p 437; Feb. 23 p 479; Apr. 13 p 901 Special for Ladle Cars,* Apr. 27 p 1031 Unique Draw at Portland, Ore., Jan. 5 p 8 Briquettes from Cast Borings, Jan. 12 p 152 Business Methods, Modern, Apr. 13 p 905 Buyers’ and Sellers’ Bureau of Cleve- land, Ohio, May 4 p 1101 Buying, Two Influences in Machinery, . June 22 p 1499 By-Product Coke Ovens June 8 p 1422 By-Product Coking and Wood Preser- vation, Jan. 5 p 3 Byllesby, H. M., & Co.: Convention, Feb. 2 p.305 Briquettes, Iron Ore, Feb. 9 p 374 Briquetting Metal Borings,* June 1 p 1344 Briquetting Plant, _ Mar. 9 p 504 q British Engineering Standards Commit- tee: Specifications for Cold Drawn Weldless Steel Tubes, Apr. 27 p 1024 British Interests Acquire Brazilian Iron Mines, Jan. 26 p 234 Bristol Company: Class 111 Recording Thermometer,* Jan. I9 p 213 British Iron Trade, Jan. 5 p 29; Feb. 26 p 404; Mar. 16 p 661 British Pig Iron Output, First Half of 1910, Jan. 12 p 122 British Pig Iron Production in May 25 p 1257 sritish Steel Companies Not Prosper- ous in 1910, Mar. 16 p 658 British Steel Production in 1910, June 29 p 1555 British Trade Conditions Less Favora- ble, Apr. 13 p 901 Brussels Exposition: Machine Tool Awards, Feb. 16 p 424 Broderick & Bascom Rope Company : Wire Rope Trade Inquiry, Jan. 5 p5 Brombacher, Max H. Railroad Repair Shop Efficiency, Jan. 5 p 31 Welfare Work. May 25 p 127 Bronze Drum Casting, Huge,* Mar. 16 p 681 Bronze, Novel Use of Allan,* June 15 p 1478 Brooklyn Engineers May 4 p 1076 3rown & Zortman Machinery Company: Fire, June 1 p 1318 Brown, Fordyce W.: Heating Furnace Doors,* Jan. 12 p 168 Brown Hoisting Machinery Company: New Ore Unloading Plant,* Apr. 6 p 861 Brown-Ketcham Iron Works: Receivership, June 8 p 1425 Brown, Richard P.: Measurement of High Temperatures in Modern Foundrv Practice, Apr. 13 p 918 Browning Engineering Company: Pile Driver,* Feb. 23 p 488 Brussels, Belgium: International Iron and Steel Confer- ence, Feb. 23 p 471 Brussels International Conference, June 22 p 1501 Brymbo Steel Company, Ltd. : Dry Air Blast at a British Plant,* May 11 p 1157 Buch’s, A., Sons Company: Combined Jarring and Squeezer Mold- ing Machine,* June 8 p 1424 Gravity Molding Machine,* Jan. 5 p 84 Buffalo Coke Rates Hearing, Apr. 13 p QO1 Buffalo Forge Company: Fan 30 Ft. High,* May 18 p 1203 Feed Water Strainer,* May 18 p 1222 Large Order for Fans, Mar. 16 p 685 New Type Slow Speed Exhaust Fan,*- June 29 p 1571 Steel Plate Pressure Blower,* Feb. 2 P 331 Buffalo Foundry & Machine Company: Huge Bronze Drum Casting,* Mar. 16 p 681 in America, Gréndal Iron Ore, 1910, Club’s Exhibition, Furnace vi Buffalo Steam Pump Company: Self-Contained Vertical Sump Pump,” June 8 p 1429 Building Material Exhibition, National, May 18 p 1213 “Building Up” Impurities in Steel, Feb 23 p 480; Mar. 2 p 537 3ullard Machine Tool Company : New Vertical Turret Lathe,* June ! p 1352 Bull, R. A.: Protecting Metal from Superincum- bent Slag, June 29 p 1554 Bunnell, Sterling H.: Engineer as a Salesman, Jan. 19 p 200 Right Principles in Works Manage- ment, May 4 p 1084 Selection of Factory Equipment, May 18 p 1196 Bureau of Standards: Emery Testing Machines, May 4 p 1103 New Samples of Steel and Ore, Feb. 2 p 327 Burden to Labor, Ratio of, Apr. 20 p 965 Burgess, Charles F.: Electrolytic Iron, Jan. 26 p 268 Burners, Hauck Portable Oil,* Jan. p 98 Burt Mig. Company: More Filters for the Gary Works, June 1 p 1365 Busch, J. C.: Power Sprue Cutter,* Feb 23 p 495 Fusiness Administration as a Construc- tive Science, Mar. 16 p 662; Mar. 23 p 722 wn Cc. Calcium Chloride for Drying the Blast,* May 25 p 1270 Calder, John: Mechanical Engineer and Prevention of Accidents, Feb. 16 p 324 California Metal Trades Association : Annual Meeting, Feb. 2 p 311 Calorimeter, Doherty Gas,* Apr. 13 p g28 Calumet Engineering Works: Crane Type Tumbler,* Feb. 2 p 330 Cupola,* Jan. 5 p 97 Cambria Paint & Color Company : Improvements, April 6 p 841 Cambria Steel Company: Annual Report, Mar. 9 p 591 Boiler Shop and Dipping Tank,* Mar. 16 p 668 New Wire Plant,* Mar. 23 p 730 Southwark Reversible Convertible Simple or Compound Engine,* Apr. 13 P 930 Cameron, A. S., Steam Pump Works: Tee oentl Rand Alliance, Jan. 19 p 222 Cammell, Laird & Co. of New York, Feb. 2 p 317 Canada: Blashill & Gray Barb Wire Machine,* Jan. 5 p 53 British-Canadian Shipbuilding & Dock Company—New Plant, June 15 p 1480 Duty on Rerolled Rails, Jan. 26 p 261 Economic Upbuilding, Jan. 19 p 202 Handling Iron Ore with Electromag- nets, Feb. 16 p 431 Heavy Rail Contracts, May 4 p 1101 Tron and Steel Bounties, Apr. 13 p 921 Tron and Steel Works Extensions, Jan. 12 p 158 Manufacturers Oppose Reciprocity, Jan. 19 p 211 Mineral Output in 1910, Mar. 23 p 7290 Pig Iron Production in 1910, Feb. 23 p 502 Port Mann, the New City, Mar. 30 p 804 Rediet Bridge, Feb. 2 p 313; Feb. 16 p 437; Feb. 23 p 479; Apr. 13 p 9oI Railway Club Meeting, Feb. 2 p 310 Reciprocity Agreement—Duties Nam- ed, Feb. 2 p 313 JANUARY-JUNE, 10911. Steel Bounties May be Renewed, Feb. 10 p 424 Steel Interests and Reciprocity, Feb. 2 p 310 Trade with the United States, Feb. 23 p 502 Wire Rod Trade, June 1 p 1317 Canals, New York Barge, May 4 p 1057 Canton Sheet Steel Company: Bailey Sheet Furnace Equipment, May 25 p 1258 Cap Screw, Hart Hollow,* Feb. 9 p 380 Carborundum Company: Some Remarkable Products,* Feb. 16 P 443 Carlin’s, Thomas, Sons Company: Contracts, June 29 p 15890 Carnegie Steel Company: Buys Bassett-Presley Company, June 15 p 1465 Extras on Bars and Shapes from Waverly Warehouse, May 11 p 1143 Publications on Steel Mine Timbers, May II p I142 Question of Extras in the Eastern Jobbing Trade, Apr. 27 p 1007 Relief Fund, Feb. 9 p 363 Carnegie Technical’ School Lectures, Feb. 2 p 330 Carpenter & Edwards: Production of Castings to Withstand High Pressures, Jan. 12 p 154 Carpenter, Prof. H. C. H.: Growth of Cast Iron, Mar. 23, p 744; June I p 1327 Carr, Clyde Mitchell :* President Joseph T. Ryerson & Son, Feb. 9 p 360 Cars: Atlas Foundry,* Jan. 5 p 92 Berg Cinder, Improved,* Mar. 23, p Enlarged Bettendorf Steel Plant,* \pr. 6 p 858 Ernst Wiener Foundry,* Jan. 5 p 97 Monarch Core and Annealing Oven,* Jan. 5 p95 Weimer Cinder, New,* Jan. 5 p 46 Number of Car Wheels, Apr. 20 p 947 Cast and Rolled Material, Competition Between, June I p 1294 Cast Borings, Briquettes from, Jan. 12 p 152 Castings : Annealing Malleable, Mar. 23 p 726;* Apr. 20 p 948. Cylinder, Made on a Mumford Mold- ing Machine,* Feb. 23 p 496 Experience with Permanent Molds, June 8 p 1402 From Nonferrous Alloys, Jan. 12 p 154 Gas Cavities and Shot in Iron,* June I p 1339 Huge Bronze Drum,* Mar. 16 p 681 Huge Cast Iron Still,* May 11 p 1166 Large Steel in Fast Time,* June 29 p 1588 Molding Thin, on an Arcade Jarring Machine,* Apr. 20, p 980 Ornamental, Made in Permanent Molds,* Jan. 5 p 68 Proposed Malleable Plant,* Jan. 5 Shot Iron and Hard Shots in, Ja p 52 Use of Briquettes from Cast Borings, Jan. 12 p 152 White Irons and the Prevention of Growth in, Mar. 23 p 744 p 72 n.5 Cast Iron Car Wheel and the Grinding Machine, Feb. 23 p 459 Cast Iron, Growth of, June t p 1327 Cast Iron Pipe Molding,* May 4 p 1008 Cast Iron, Vanadium in, June 8 p 1308 Cast Iron Pipe Prices from 1900 to 1910,* Mar. 2 p 534 Cast Iron Wheels, Ferromanganese in Chilled, Apr. 6 p 820 Catalogues, Suggestions Wanted for Size, Mar. 2 p 519 Cedar Rapids Foundry & Machine Com- pany: Gasoline Engine Speed Regulator, Mar. 9 p 586 Center Finder, Sure,* Apr. 27 p 1031 Central Foundry Company: Reorganized, May 18 p 1203 Central Station Welfare Work, Apr. 20 Pp 973 Chain Bridge, Essex-Merrimac, May 4 p 1075 Chain Information, Jan. 5 p 67 Chain Oil Feed, Spencer Universal,* June 29 p 1587 Chandler & Farquhar Company: Expansion, Feb. 2 p 317 Chandler & Taylor Company: Molding Thin Castings on an Arcade Jarring Machine,* Apr. 20 p 980 Changeezy and Delta Tramrail Trol- leys,* Jan. 5 p 93 Charcoal Blast Furnace, New, May 4 p 1069 Charcoal Pig Iron for Chilled Car Wheels, New, Mar. 9 p 605 Charging of Cupolas, Mechanical,* June 8 p 1426 Chelsea Piers, Fuel Handling on the,* Feb. 23 p 497 Chemical Engineers: Announcement of June Meeting, Feb. 2p 317 Chemical Industry, Society of: Treatment and Purification of Boiler Feed Water, Mar. 2 p 533 Chicago rounary Foremen’s Associa- tion, Jan. 26 p 249; Feb. 16 p 467 Chicago Iron Trade in 1910, Jan. 5 p 60 Chicago Metal Trades Annual Meeting, Mar. 23 p 740 Chicago Municipal Exposition, Jan. 5 p R2 Chicago Perforating Company, June 15 p 1485 Chicago Pneumatic Tool Company: Annual Report, Feb. 23 p 501 Contrast in Air Compressors,* May 18, p 1216 Pneumatic Sand Rammers, Jan. 5 p 107 Chicago Railway Equipment Company : \nnual Report, Mar. 9 p 506 Chicago Railways Company: Novel Application of Motor Drive to Machine Tools,* May 4 p 1088 Chilean Buyers in New York, May 11 p 1150 : Chilled Rolls with Passes Cast in,* May 25 p 1269 Chloride for Drying the Blast, Calcium,” May 25, p 1270 Chokio Water Works Bids, May 4 p 1081 Chromium, Determination of Manganese in the Presence of, May 11 p 1156 Chucks : Garvin Automatic,* Mar. 9 p 626 Moller Oval,* Jan. 5 p 52 Murchey Revolving,* Feb. 23 p 406 Weaver Roller Jaw,* Jan. 19 p 223 Church, A. Hamilton: Distributing Expense Burden, June 1 p 1325 Cincinnati Foreman’s Club, Mar. 16 p 657 Cincinnati Foundry Foremen, May 4 p 1085 Cincinnati Gasket & Packing Company: Triple and Trinity Gaskets,* Jan. 19 2909 p 222 Cincinnati Gear Cutting Machine Com- pany: No. 5 Gear Cutter,* Apr. 27 p 1039 ‘incinnati Iron Trade in 1910, Jan. 5 p 62 ‘incinnati Planer Company : Boring Mill,* Jan. 26 p 270 Distributing Factory Operating Costs,* June 15 p 1479 Shop Cost Accounting,* Mar. 2 p 554 ‘incinnati Pulley Machinery Company: Heavy Duty Pulley Lathe,* Apr. 27 p 1041 ~ i ~ AO G& Ci Ce Cincinnati Punch & Shear Company: Leighton Combination Punch and.* Shear,* Mar. 16 p 680 Cincinnati Shaper Company: Shaper with Jib Crane,* Mar. 23 p 729 Cincinnati’s Industrial Development, Mar. 30 p 797 Cinder Notch, Rifle Shots Chilled, Feb. 2 p 311 Clamp, Paramount Indestructible Steel,* Apr. 6 p 867 Clapp, E. D., Mfg. Company: Improvements, Jan. 5 p &1 Clark, W. A.: lron Ore Docks on the Lakes,’ 20 p 972 Claussen, Oscar, Engineering Company : Chokio Water Works Bids, May 4 p 1081 Clayton Air Compressor Works: Motor Driven Air Compressors,* Apr. 20 P 975 Cle-Gal-Co Pattern Shop and Foundry Supplies,* Jan. 5 p 114 Open a Apt Cleats and Press, Kant-Leak,* Mar. 16 p 675 Cieveland Crane & Engineering Com- pany: Monorail Grab Bucket Coal Hoist,* .Mar. 2 p 550 Cleveland, Erie Railroad Ore Docks in, Mar. 23 p 729 Cleveland Galvanizing Works Company , Cle-Gal-Co Pattern Shop and Foundry Supplies,* Jan. 5 p 114 Cleveland Machine Tool Works: Horizontal Boring Mill,* Jan. 5 p 47 Cleveland Nickel Works: Superior Tumbling Mills,* Jan. 5 p 104 Cleveland, Ohio, Buyers’ and Sellers’ Bureau at Cleveland Pneumatic Tool Company: Pneumatic Hammers and Rammers, Jan. 5 p 107 Portable Pneumatic Grinder,* Jan. 12 p 162 Cleveland Steel Tool Company: Hydromatic Water Valve,* May 18 p 1219 Cleveland Superintendents and _ Fore- men, Mar. 23 p 717 Climax Hoist Company: Spur Geared Chain Hoist,* Apr. 6 p 860 Clough, R. M.: Vertical Combination Bench Miller and Drill* May 2: p 1273 Clutch, Reilly Friction,* Feb. 23 p 490 Coal: Analysis by Consumers, June 1 p 1317 \ Thousand an Acre for Connellsville, June 15 p 1447 Miners’ Compensation p 061 Production of, in 1910, May 18 p 1207 Coal Distillation Company: Collins By-Product Coke Oven, 23 p 513 Cobb. John W.: Corrosion of Iron, June 8 p 1417 Coils, Westinghouse Air-Cooled Choke,* June 29 p 1576 Plan, Mar. 16 Feb. Coke: Algoma Steel Company’s Plant,” 20 p 9&2 Bartlett & Snow Mechanical Quench er,* June 22 p 1531 Buffalo Rates Hearing, Apr. 13 p 9oI By-Product Ovens and Conservation Feb. 9 P 374 By-Product Ovens in 8 p 1422 Collin By-Product Oven, Feb. 23 p 513 Connellsville Interests and Railroad Discrimination, Mar. 2 p 519 Connellsville Output in tg91r0, Jan. 12 Pp 133 Foundry, June 22 p Koppers Ovens, June 29 p 1554 New Rates, Apr. 6 p 838 Oven Gas in Open Hearth Furnaces, Feb. 2 p 318; May 18 p 1232; June 22, p I501 \pr. (America, June 1515 JANUARY-JUNE, 10911. Ovens at Lorain, Ohio, Mar. 9 p 588 Producers’ Association, Mar. 23 p 734 Size of Charge for a Cupola, June 29 P 1555 Cooking, Wood Preservation and By- Product, Jan. 5 p 3 Rolling of Standard Sections, Forming Special Shapes by,* May 18 p 1215 Collars for Emery Wheels, Safety, Mar. 30 p 804 Collin By-Product Coal Oven, Feb. 23 Pp 513 Colburn Machine Tool Company: Motor Driven Boring Mill,* Mar. 9 p O17 ; Collector, Morse Dust,* Jan. 5 p 101 Collins, Fletcher : Standards for the Various Pig Iron. June 8 p 1400 Columbia Steel Foundry,* Jan. 12 p 160 Columbia Tool Steel Company: Salesmen, Jan. 5 p 18 Commercial Bureau Company: Export Assisting Plan, May 25 p 1260 Commercial Engineers’ Association, Chi- cago, May 4 p 1121 Commercial Vehicles, Advantages of Long Stroke Motors for, Mar. 23 P 744 Compensation : And Conciliation, Accident, Apr. 13 p 583 Liability Systems, Feb. 23 p 408 Coal Miners’ Plan, Mar. 16 p 661 Constitutional Law, June I p 1319 Employers’ Liability and, Apr. 20 p 968 Essential Cost Factor of, Jan. 12 p 121 In Ohio, Feb. 16 p 433 In Seven States, Apr. 6 p 842 Legislation in New Jersey and Ohio, Apr. 6 p 825 Model Code, Feb. 23 p 408 New York Decision, Mar. 30 p 759 New York Law Void, Mar. 30 p 794 Ohio Law, June 22 p 1539 Workingmen’s, Feb. 23 p Complaints of Subordinates, Unfair, Mar. 16 p 643 Compressor Regulation, Air,* June 22 p 1530 Cold Kinds of And Employers’, 499 Checking Compressors: Clayton Motor Driven Air,.* Apr. 20 p 975 Contrast in Air,* May 18 p 1216 General Electric Turbine-Driven,* Mar. 2 p 538 Roberts Motor Air,* Jan. 12 p 164 Concrete Floors, Repairing, Apr. 20, p 087 Concrete Patterns, Experience with, Feb. 9» 305 Concrete, Pittsburgh Standard Rein- forcement for, March 23 p 725 Concrete Shafts of Record Size, Jan. 5 p 30 Pulley, Molding, on an Interna- tional Turn-Over Machine,* May II p 1158 Congress of Technology at Boston, Mar. 9 p 592; Mar. 16 p 686; Mar. 30 p 788; Apr. 20 p 967 Connellsville Coal, a Thousand an Acre for, June 15 p 1447 Connersville Bluwer Company: Applied to Vacuum Cleaning,* May 11 p 1166 Rotary Positive Blower,* Jan. 5 p 102 Cone Constitutional Compensation Law, June I p 1319 Construction, New Iron and _ Steel Works, Jan. 5 p 34 Contracts, Securing Foreign Govern- ment, May 4 p 1074 Controllers: Cutler-Hammer Alternating Current Motor Speed,* Mar. 2 p 549 Cutler-Hammer Reversible Direct- Current Drum,* June 29 p 1581 vii Conventions : American Electrochemical Mar. 30 p 815 American Foundrymen’s Association, May 25 p 1250; June 1 p 1328 | American Institute of Mining Engi- neers, June 22 p 1512 American lron, Steel & heavy Nard- ware Association, June I p 1297 American Society of Mechanical En- gineers, June 1 p 1308; June 8 p 1411* American Supply and Machinery Man- ufacturers’ Association, Apr. 6 p 840; Apr. 13 p 904 International Master Boilermakers’ Association, June 8 p 1383 National Association of Jobbers of Wrought Iron Pipe and Fittings, Mar. 16 p 658; Mar. 23 p 726 National Association of Manufactur- ers, May 18 p 1182; May 25 p 1258 National Association of Stove Manu- facturers, May 18 p 1232 National Gas and Gasoline Engine Trades Association Programme, Apr. 13 p 927 National Machine Tool Builders’ As- sociation, May 25 p 1252 National Metal Trades Association, Apr. 13 p 901; Apr. 20 p 976 National Supply and Machinery Deal- ers’ Association, Apr. 6 p 840; Apr. 13 p 904 Pittsburgh Foundry,* June I p 1328 Railway Master Carbuilders’ Associa- tion, June 22 p 1518 Railway Master Mechanics’ tion, June 22 p 1518 Society for Promotion of Engineering Education, June 22 p 1530 Southern Supply and Machinery Deal- ers’ Association, Apr. 6 p 840; Apr. 13 p 904 Steam Engineers, June 15 p 1477 Tariff Commission, Jan. 19 p 207 United Metal Trades Association, Apr. 27 p 1007 Converter with Double Door Tropenas, Apr. 27 p 1018 Conveyor for Handling Kegs,* p 1165 Cooper, C. & G. Company: Engine Contracts, Feb. 23 p 502 Co-operation and Government Over- sight, Trade, Mar. 16 p 642 Co-operation, E. H. Gary on, June 8 p 1408 Copenhagen Polytechnic Plan, Feb. 9 p 349 Copes Boiler Feed Regulator: (Analysis of Boiler Feed Jan. 12 p 170 Copper: African, Jan. 26 p 245 * Alaska Copper Coming, Apr. 6 p 823 Conservative Market of 1910, Jan. 12 p 12! Consumption, Jan. 26 p 267 Hardened, Mar. 9 p 580 December Production and _ Stocks, Jan. 12 p 147; Production and Stocks, January, Feb 16 p 442; February, Mar. 16 p 666; March, Apr. 13 p 884; April, May 11 p 1150; May, June 15 p 1462 Trade in 1910, Jan. 5 p 63 World’s Production in 1910, Mar. 30 p 815 Core Bench Jolt Rammer,* June 1 p 1340 Core Machines: Acme,* Jan. 5 p 88 Elmira Roll-Over,* Jan. 5 p 89 Grimes Roll-Over,* Apr. 27 p 1024 Core Room Management and Materials, Mar. 16 p 664 Core Wash and Parting Compound, Jan. 5 p 117 Cores, Binders for Foundry, May 11 p 1140 Corey, William E.: Resigns, Jan. 5 p 7 Cork Set in Faces, Pulleys with,* 11 p 1167 Society, Associa- Bottom, May I! Records,* . May Vili Cornell, J. B. & J. M., Company. : Assets Sold, June 15 p 1463 Corporations, Federal Regulation Pro- posed, Apr. 27 p 1025 Corporations, New Sasmay’s Governor on, Jan. 19 p 174 Corrosion : And Pitting in Metals, June 15 p 1485 Of a Steel Beam Protected by Terra Cotta and Concrete, Serious,* Feb. 23 p 486 Of Iron, June 8 p 1417 Of Unprotected Steel Work, Feb. 2 p 306 Potassium Chromate as Metal Pro- tection Agent, June 29 p 1579 Sulphur in the Air, June 29 p 1589 Test of Metals, Accelerated, June 29 p 1555 Costs of Producer Gas Plants, Operat- ing, June 29 p 1570 Corse, W. M.: Brass Melting Furnaces, Jan. 5 p $54 Cost Accounting, Shop,* Mar. 2 p 5 Cost of Living, Legislation and a L Feb. 9 p 350 Costs, Distributing Factory Operating,* June 15 p 1479 Covel Mfg. Company: Automatic Circular Metal Saw Sharp- ener,* Apr. 6 p 866 Cranes: Alliance Foundry,* Jan. 5 p 91 Pawling & Harnischfeger, in a Ma- terial Yard,* May 18 p 1214 Shepard Electric Foundry,* Jan. 5 p 95 Special Maris Foundry,* Jan. 5 p 92 Cream City Accident Preventer,* May 4 Pp _I103 Crescent Forgings Company: New Cresco Monkey Wrench,* Mar. 16 p 679 Crescent Machine Company: Variable Feed Planer,* Jan. 5 p 110 Cresco Monkey Wrench, New,* Mar. 16 p 679 Cresson, George V., Company: In Receiver’s Hands, Feb. 16 p 407; Mar. 9 p 607 Crucible Steel Company of America: Buys Midland Steel Company, Feb. 2 D 203 Finances, Apr. 20 p 960 Further Strengthens Its Feb. 24 p 473 Secures Controlling Interest in Hal- comb Steel Company, Feb. 16 p 406 Crusher, Gardner, Apr. 13 p 927 Cuban Coal Trade, New Vessel for the, Apr. 13 p 929 Cuban Iron Ores, Exploration of,* Apr. 13 p 914 Cupolas: Barry & Zecher Company,* Jan. 5 p 98 Calumet Engineering Works,* Jan. 5 p Position. 07 Mechanical Charging of,* June 8 p 1426 Newten, Northern Works,* Jan. 5 p 100 Size of Coke Charge for a, June 29 p Engineering 1555 Whiting Foundry panv.* Jan. 5 Cupror Company: Cupror, Mar. 9 p 589 Curtis & Co. Mfg. Company: Air Hoists,* Jan. 5 p o1 Custer, Edgar A.: Equipment Com- Pp 99 Experience with Permanent Molds. June 8 p 1402 Customers, Specialized Seeking for New, Feb. 9 p 349 Customs Decisions: Airtight Metal Cans, Feb. 9 p 371 Automobile Horns, May 18 p 11990 Automobile Parts, May 11 p 1164 Barbers’ Hair Clippers, Apr. 6 p 851; May 4 p 1079 Bayonets, Apr. 20 p 949 Cast Iron Statues, Mar. 30 p 774 Chiropodists’ Knives, Mar. 9 p 590 JANUARY-JUNE, IgII. Embossing Machines, Jan. 12 p I51 Empty Ammonia Drums, May 4 p 1078 Engravers’ Printing Presses, June 1 p 1362 Erasers with Fixed Blades, Feb. 16 p 19 File Testing Machines, Feb. 23 p 461 Forged Iron Ladles, Apr. 20 p 949 Galvanized Steel Wire Rope, Feb. 23 p 40! Hand Brick Presses, Jan. 12 p 151 Ignition Cable, Jan. 5 p 67 Iron Drums or Containers, Feb. 9 p 371 Jute Machinery Parts, May 11 p 1164 Lawn Mowers, June 1 p 1362 Lead Contents of Type Metal, Feb. 9 P 371 Machine Repair Parts, Feb. 9 p 371 Machines for Making Jgniters for Miners’ Lamps, May 4 p 1078 Mantel or Fireplace Castings, May 18 p 1199 Metal Cans, Mar. 9 p 590 Miners’ Rescue Appliances, Mar. 9 p 590 Nut Locks, Apr. 20 p 949 Old Broken Electrotypes, May 4 p 1078 Plow Parts, Jan. 12 p 151 Plumbago Crucibles, Jan. 5 p 67 Rolls for Rolling Mills, Apr. 6 p 851 Sewing Machines, Feb. 16 p 419 Silico-Spiegel, Feb. 23 p 461 Spinning Gears, May 4 p 1079 Steel Railroad Ties, Jan. 12 p 151; Feb. 16 p 419 Vegetable Cutters, Apr. 6 p 851 Cutler-Hammer Mfg. Company: Alternating Current Motor Speed Controllers,* Mar. 2 p 549 New Magnetic Separator,* June 29 p 1581 Reversible Direct-Current Drum Con- trollers,* June 29 p 1581 Solenoid Operated Valve,* Mar. 16 p 680 Thomas Meter,* Mar. 16 p 676 Unloading Pig Iron with Lifting Mag- nets,* Apr. 6 p 865 Cutters : Busch Power Sprue,* Feb. 23 p 405 Shuster Sprue,* Jan. 5 p 117 Standard Sprue,* Jan. 5 p 116 Cutting Worm Gear on Gear Hobbing Machine, June 29 p 1573 Cuyuna Iron Range, New Find on the. Feb. 23 p 502 Cuyuna Range. First Ore from the, 25 Pp 1258 May D. Dallas Coal, Iron & Steel Company, Jan. 19 p 211 Dalton Adding Machine Company: New Factory, Mar. 9 p 625 Damascus Bronze Company : Copper, Mar. 9 p 606 ' Dartmouth College: Conference on Scientific Management, May 4 p 1087 Davis-Bournonville Company: Steel Cutting with the Oxy-Acetylene Torch,* Mar. 9 p 622 Davis. J, <: Cast Steel Car Wheel,* May 4 p 1090 Davis, W. P., Machine Company: Turret Lathe, 26-in.,* Mar. 30 p 800 Dawson Hardened Copper Company: Hardened Copper, Mar. 9 p 589 Deane Steam Pump Company: Sand Sifters,* Jan. 5 p 111 Dearborn Drug & Chemical Works: Feed Water Treatment Abroad, Jan. 19 p 226 Decision, American Tobacco, June 1 p 1206 Decisions, Application of the Anti- Trust, June 8 p 1378 Decisions of Interest to Manufacturers, Judicial, Jan. 5 p 17; Feb. 2 p 343; Mar. 9 p 595; Mar. '30 p 7738; June 22 p I514. Deere & Co.: Reorganization, Apr. 6 p 851 De Laval Steam Turbine Company: Turbine Reducing Gear,* Apr. 13 p 919 De Leeuw, A. L.: Milling Cutters and Their Efficiency,* May II p 1152 Delta and Changeezy Tramrail Trol- leys,* Jan. 5 p 93 Depreciation of Unprotected Steel Work, Feb. 2 p 306 “Depreciation,” What It Means, Mar. 9 Pp 572 Des Moines Rapids Hydroelectric Plant, Mar. 30 p 771 Detroit Engine Works: Kerosene Engine,* Apr. 6 p 867 Detroit Foundry Supply Company : Annual Meeting, Feb. 2 p 292 Detroit Steel Products Company: Annual Meeting, Feb. 2 p 292 Fenestra Solid Steel Window Sash, Mar. 16 p 684; Apr. 13 p 929 Detroit Stoker Company: Stoker,* Feb. 9 p 384 Devens, Richard: Mechanical Handling of Apr. 27 p 1022 Dison Clamp & Flask Company : Slip-Over Boxes and Bands,* p 115 Diamond Expansion Bolt Company: Boiler Repair Bolts,* Feb. 9 p 388 Toggle Bolt,* Mar. 9 p 596 Dick, R. & J., Ltd.: Belt Factory at Passaic, N. J., 18 p 1207 Dickson, Wm. B.: Employers’ Liability and Workmen's Compensation, Apr. 20 p 968 Resignation, Mar. 23 p 727 Die-Casting Machine,* Aor. 27 p 1026 Materials, Jan. 5 May Die Head, Landis Solid Adjustable,” Mar. 2 p 556 Die Head, New Self-Opening,* June 1 p I35I Die Machine, Wiley & Russell Combina- tion Opening,* Mar. 2 p 554 Differdange Steel Works: Calcium Chloride for Drying the Blast,* May 25 p 1270 Diller, H. E.: ; Foundry Coke, June 22 p 1515 Dille & McGuire Mfg. Company: Expansion, Apr. 6 p 821 Dilworth, Porter & Co., Inc.: General Electric Apparatus, 1086 Direct Current of 1500 Volts for a Rail- road, June 22 p I501 Distributing Expense Burden, 1325 Distributing Factory June 15 p 1479 Dobson, William: Molders’ Tools,* Jan. 5 p 117 Dock, New Marquette Ore, Jan. 26 p 284 Docks on the Lakes, Iron Ore,* Apr. 20 p 972 Dodge, Lau M.: Conservation of Human Effort, 9 p 588 Dodge Mfg. Company: Quarter Century Club, Feb. 16 p 418 Transmission Rope Splicing,* Apr. 27 p 1032 Doherty Gas Calorimeter,* Apr. 13 p 928 Dominion Steel Corporation: Wire Rod Trade, June 1 p 1317 Donnelly-McArdle Case, Apr. 27 p 1007 May 4 p June I p Operating Costs,* Mar. Doors, Heating Furnace,* Jan. 12 p 168 Dougherty, John W.: President Pittsburgh Crucible Steel Company, Mar. 2 p 535 Douglass, W. & B.: Contractors’ Diaphragm Pump,* Jan. 5 P 53 George E., Pumping Engine Com- pany: Very Large Triplex Pump,* May 11 p 1164 Dow Wi ire & Tron Works: Ornamental Castings manent Molds,* Jan. 5 Dow, Per- Made in p 68 Drafting Room Expense, June 22, p 1500 Draftsmen, American Society of En- gineer, June 1 p 1346 Drees Machine Tool Company: New Vertical Boring Machine,* Apr. 27 p 1025 Screw Machine, I-in., Jan. 5 p 39 Dresser, Frank F.: Accidents in Industrial Plants, Jan. 19 p 214 Drill Table, Morris Swiveling Radial,* Jan. 5 p 49 Drilling and Reaming Jig, Wood & Spencer,* Mar. 2 p 556 Drilling Machines: _ All-Geared Multi-Spindle,* Jan. 26 p 268 Barnes Special Horizontal,* Mar. 9 p :017 Frontier Heavy Pattern,* June 8 p 1433 Gang Sensitive Radial,* May 4 p 1102 Harrington Belt-Driven Flue Sheet,* June 29 p 1572 Henry & Wright Radial, New,* May II p 1159 Kane & Roach Radial,* May 18 p 1203 Lamb Portable Electric Radial,* Apr. 6 p 866 Midland 30-in. Radial,* May 4 p 1108 Moline Multiple Spindle, New,* Apr. 6 p 855 Prentice Ball Bearing, New,* Apr. 27 1042 Reed High Speed Sensitive, New,* May 4 Pp 1093 ; Rockford 14-in., New,* Mar. 30 p 793 Rockford Positive Geared Feed,* June 15, p 1485 Sibley Four-Spindle,* June 1 p 1347 Sibley 24-in. Stationary Head,* May 4 p 1089 Townsend High-Speed June 29 p 1580 Drilling, Milling and Boring Machine, Special Fosdick Horizontal,* May 4 p 1107 Drive, Motor, Novel Application to Ma- chine Tools,* May 4 p 1088 Drucklieb Multiple Injector Sand Blast,* Apr. 13 p 923 Drucklieb Sand Blast Specialties,* Jan 5 p 103 Dry Air Blast at a British Furnace Plant,* May 11 p 1157 Dry Air Blast, Results With,* Feb. 2 p 308; Feb. 9 p 368 Dry Blast Method, New, May 25 p 1236 Dry Blast Process Tested, New,* June 1 p 1354 Pangborn Ideal p 112 Drying the Blast, Calcium Chloride for,* May 25 p 1270 Du Charme Wrench & Novelty Mfg Company: Removal, Mar. 16 p 657 Dudley, P. H.: Elongation and Ductility Rail Tests, April 6 p 839 Duff Mfg. Company: Another Jack Improvement, Jan. 5 Drill Press,* Dryer, Sand,* Jan. 5 p7!I Jacks at Buenos Aires, Feb. 23 p 404 Ratchet Jacks at Panama,* Jan. 12 p 167 Duggan, Thomas R.: Treatment and Purification of Boiler Feed Water, Mar. 2 p 533 Duplex Process at Bethlehem Steel Com- pany’s Plant,* Mar. 30 p 784 Durham Coal & Iron Company, Jan 26 Pp 249 Dust Collector, Morse,* Jan. 5 p 101 Dust Exhausting System, Unusual,* May 18 p 1220 Dynamiters, Alleged Structural April 27 p 1005 Steel, JANUARY-JUNE, 1911. E. Edison Electric Hluminating Company: Coal Analysis, June I p 1317 Edison Giant Roll Patents June 22 p 1520 Editorials : A Thousand an Acre for Connellsville Coal, June 15 p 1447 Accident Compensation and Concilia- tion, Apr. 13 p 883 Accidents and Safeguards in England. Mar. 23 p 703 Alleged Structural Steel Dynamiters, Apr. 27 p 1005 America and the Foreign Patent, Mar. 9 p 571 American Workingman, May 4 p 1055 Anti-Accident Inspection Service, Feb. 2 p 288 Anti-Trust Cases, Feb. 23 p 458 Application of the Anti-Trust De- cisions, June 8 p 1378 Automobile an Economic Good, Jan. 19 p 175 Awakening to the Danger of Apr. 13 p 883 Beating Down Machinery Prices, June I p 1200 Better Outlook for the British Iron Trade, Feb. 16 p 404 British Insurance Against Unemploy- ment, Feb. 9 p 349 Business Outlook, June 22 p 1408 Cast-Iron Car Wheel and the Grinding Machine, Feb. 23 p 459 Checking Unfair Complaints of Sub- ordinates, Mar. 16 p 643 Competition Between Rolled and Cast Material, June I p 1294 Concentrated Advisory Board, May 4 p 1055 Confusion Over Non-Cancellation Clauses, Jan. 5 p 4 Conservative Copper Market of 1910, Jan 12 p 12! Copenhagen Polytechnic Plan, Feb. 9 p 349 Country’s ments, May Drafting-Room 1500 Economic Crime of Increasing Pro- ductive Capacity, June 22 p 1498 Efficiency and Its Broader Application, Mar. 16 p 642 Efficiency in Railroad jan. $ p : Electric Furnace and Electrical En- gineering, Feb. 23 p 459 Engineer in Steel Foundry Practice, Feb. 16 p 405 English and American Labor tions, Apr. 27> p 1005 Essential Cost Factor of Compensa- tion, Jan. 12 p 121 First Aid a Ground for Damages, June 29 p 1553 Foundry Features of This Issue, Jan. 5 p2 Freight Rate Decisions, Mar. 2 p 516 Gary Idea in the International Steel Trade, Feb. 9 p 348 Geared Turbine and Its Lessons, Apr. 6 p 819 Government Regulation of Apr. 20 p 947 Growing Pre-eminence of the Mesaba Range, Apr. 20 p 946 Growing Use of the Industrial Auto- mobile, Jan. 12 p 121 Government Hydraulic Testing Plant, Feb. 2 p 289 Heavy Section High Carbon Jan. 26 p 232 Higher Machine Tool Prices, June 8 p 1380 Increasing Machinery Exports, Jan. 26 Sustained, Fire, Minimum Iron 18 p 1181 Expense, June 22 p Require- Management, Condi- Prices, Rails, P 233 Industrial Education Evangelist, Apr. 27 P 1005 : Intensive Production, June 8 p 1379 Iron and Steel in the World’s Rail- roads, June 29 p 1552 ix Judge Gary as a Witness, June I5 p 1446 Lathe or Turning Machine? June 29 P 1553 Leaders in Pig Iron Production, Feb. 2 p 280 ; Limits of Large Marine Oil Engine Units, Feb. 2 p 289 Long Life of American Tools, May 4 p 1055 Machinery Exhibit That Paid, Mar. » 572 Massachusetts Eight-Hour Bill In- valid, May 25 p 1237 Metal Frames for Aerial Craft, Apr. Machine 6 p 8190 Navy an Industrial School, Apr. 27 p 1004 Navy Department Perplexity, Mar. 16 p 644 New Art in Automobile Building, May II p I1t24 New Dry Blast Method, May 25 p 1236 New Free List, Apr. 20 p 947 New Jersey’s Governor on Corpora- tions, Jan. 19 p 174 New Metal Perforating Process, Mar. 16 p 643 New Steel Capacity in Germany and at Home, May 4 p 1054 New Work for the Efficiency En- gineer, Feb. 23 p 459 New York Machinists’ Strike, May 4 p 1054 New York Workmen’s Compensation Decision, Mar. 30 p 759 Open-Hearth Furnace -Capacities, June 22 p 1499 1910 an Unusual Year in Rails, Feb. _ 23 p 458 fe Noteworthy Anti-Boycott Decision, Jan. 26 p 232 Novelty in Apprentice Systems, Mar. 9 Pp 571 Number of Car Wheels, Apr. 20 p 947 Official Lists of Machine Tool Build- ers, Jan. 26 p 234 Ore Prices and Pig Iron Prices, Mar. 2 p 517 Our Trade Balance Due to Our Manu- factures, May 25 p 1236 Perennial Rail Problem, Mar. 30 p 758 Pig Iron Costs in Alabama, May 11 p 1124 Price Concessions on Export Trade, May II p 3125 Private Industrial Museums, Jan. 26 P 233 Proposed Machinery Exposition, June I p 12 Railroad Educational Bureau, Mar. 9 D 570 Railroad Securities as Investments, Feb. 16 p 405 Rate Decisions and Other Price Ques- tions, Mar. 9 p 57 Readers of The Iron Age, Apr. 13 p 882 Reason in Anti-Trust Cases, May 18 p 1180 Reciprocity Agreement with Canada, Feb. 2 p 288 Record Iron and Steel Exports, June 8 p 1378 Reduction in Lake Iron Ore, Apr. 27 p 1004 Rods a Finished Steel Product, June 29 p_ 1553 Septic Poison’s Needless Cost in Works, Jan. 12 p 121 Specialized Seeking for New Custom- ers, Feb. 9 p 349 Standard Lengths for Wire Test Pieces, Feb. 23 p 459 State Control of Women’s and Mi- nors’ Wages, June 29 p 1554 Steel Corporation Production, 1910, Feb. 16 p 404 Steel Corpor