February 14, 1913. THE COLLIERY GUARDIAN. 361 Third Edition. Bound in Cloth, IOs. net. Analyses of British Coals and Coke. A GUIDE TO THE PUBCHASE OF COAL. Source THE COAL DUST AT YOUR PITHEAD (Tipplers, Screens, Belts, &c.) IS A OF Trouble. WE can COLLECT it Pneumatically COMPILED BY ALLAN GREENWELL, F.G.S., Assos.M.Inst.C.E., M.Inst.M.E., AND J. V. ELSDEN, F.G.S., D.§c.(Lond.) THE COLLIERY GUARDIAN CO. LTD. 30 & 31, Eurnival Street, Holborn, London, E.C. and CREATE a VALUABLE ASSET FOR YOU. Fans for Dust Recovery Write us (C.G.J, Fan Dept., ALLDAVS & ONIONS Co. Id., BIRMINGHAM. Purchasers’ Guide to Advertisers’ Specialities—(continued). Gas Producers Gas-Testing Lamps Ackroyd and Best Ld., Morley, Leeds Davis, John, and Son (Derby) Ld., Derby Gas Tubes and Fittings Lewis, Edwin, and Sons, Wolverhampton Stewarts & Lloyds Ld., Birmingham A Glasgow Wellington Tube Works Ld., Great Bridge, Tipton Gas Valves Haslam and Schontheil Ld., Bristol Gauge Glasses Davis, E., 2, Aire-street, Leeds Davis, John, and Son (Derby) Ld., Derby Guilbert-Martin, 9, Edmund-pl,, Aldersgate, E.C, Hopkinson, J., and Co. Ld., Huddersfield Boyles Ld., Irlam, Manchester Theedam, E. C., Ld., Dudley Treasure, J. B., & Co., 8 A 12, Vauxhall-rd., L’pool Gauge Class Protectors Davis, E., 2, Aire-street, Leeds Hopkinson, J., and Co. Ld., Huddersfield Boyles Ld., Irlam, Manchester Theedam, E. C.» Ld., Dudley Gauges Davis, E., 2, Aire-street, Leeds Green and Boulding Ld., 28, New Bridge-st., E.C. Hopkinson, J., and Co. Ld., Huddersfield Yorkshire Boiler Co. Li., Bradford Gear (Special for Motor Lorries Cars &o.) Brown, David, & Sons (Hudd.) Ld., Huddersfield Gearing British Insulated and Helsby Cables Ld., Prescot Brown, David, & Sons (Hudd.) Ld., Huddersfield Bumsted and Chandler Ld., Hednesford, Staffs. Daglish, Bobert, and Co. Ld., St. Helens, Lancs. Jardine, John, Deering-street, Nottingham Lancaster and Tonge Ld., Pendleton, Manchester Leech, Goodall & Co., Hunslet, Leeds Thornewill and Warham Ld., Burton-on-Trent Walker Brothers (Wigan) Ld., Wigan Wood. John, and Son Ld., Brook Foundry, Wigan Girders (Iron and Steel) Daglish, Bobt., and Co. Ld., St. Helens, Lancs. Firth, Wm., Ld., Water-lane, Leeds Heenar and Fronde Ld., Manchester Henderson and Glass, Liverpool Isox Foundry Co.. Newport, Mon. Benton, B. M., and Co., Midland Works, Sheffield j Scott, Walter, Ld., Leeds Steel Works, Leeds Shelton Iron, Steel and Coal Co. Ld., Stoke-on Trent, Staffs. Ward. Thoa. W.. Li m I ted. Albin” Works. Sheffield Class Manufacturers (Tube Rods Enamels Guilbert-Martin. 9. Edmnnd-pL, Aldersgate, E.C. Governors (Engine) Evans, Joseph, and Sons (Wolverhampton) Ld., W ol verhampton Mather and Platt Ld., Manchester Daglish, Eobt., and Co. Ld., St. Helens, Lancs. Tangyes Ld., Cornwall Works, Birmingham Governors (Hydraulic) Grease Chorley Bailway Wagon Co. Ld., Chorley, Lancs Gaunt and Hickman, Wolverhampton Trier Bros. , Caxton House, Westminster Theedam, E. C., Ld., Dudley Thomas and Bishop, 119-125, Finsbury Pav., E.C. Wakefield, C. C., and Co., 27, Cannon-street, E.C. I Grinding Maohinery Bridge, David, A Co. Ld., Castleton, Manchester Hardy Patent Pick Co. Ld., Sheffield Grindstones Gunpowder Curtis’s and Harvey Ld., Cannon st. House, E.C. Gutta Percha Cort, Arthur, A Co. 3034, Camberwell-rd., London Forges Alldays & Onions Pneumatic Engineering Co. Ld., Birmingham Hardy Patent Pick Co. Ld., Sheffield Keith, James, A Blackman Co. Ld., 27, Farring- don-avenue. London, E.C. Forgings Bagnall, W. G., Ld., Stafford Ghorley Railway Wagon Co. Ld., Chorley Hardy Patent Pick Co. Ld., Sheffield Lowmoor Co. Ld., Lowmoor Ironworks, Bradford Benton ,B. M., and Co., Midland Works, Sheffield Uskside Engineering Co. Ld., Newport Walker Bros. (Wigan) Ld., Wigan Wright, Joseph, and Co,, Tipton Yorkshire Engine Co. Ld, Sheffield Friction Clutches Bever, Dorling, and Co. Ld., Bradford, Yorks. Bridge, David, A Co. Ld., Castleton, Manchestei Daglish, Robert, and Co. Ld., St. Helens, Lancs. Fraser & Chalmers Ld., 3, London Wall Bldgs., E.C. Longbotham, B. H„ and Co. Ld., Wakefield Norton’s (Tividale) Ld., Tipton Beavell and Co. Ld., Ipswich Beddaway, F., & Co. Ld., Pendleton, Manchester Theedam, E. C., Ld., Dudley Walker Brothers (Wigan) Ld., Wigan Wood, John, A Sons Ld., Brook Foundry, Wigan Wright, Joseph, and Co., Tipton Friction Surfaces Frood, Herbert, to. Ld., Chapel-en-le-Frith Fuel Economisers m ,, Fell, C. A., Dronfield, near Sheffield Pillatt and Co., Stapleford, Nottingham Stringer, John, and Son, Dept. 11, Blackburn Yorkshire Boiler Co. Ld. Bradford Fuel Machinery Middleton, Bobert, Sheepscar Foundry, Leeds Uskside Engineering Co. Ld., Newport Yeadon, Son and Co., Albion-plaoe, Leeds Furnaces Alldays & Onions Pneumatic Engineering Co. Ld , Birmingham Bennis, Ed., and Co. Ld., Little Hulton, Bolton Leech. Goodall & Co., Hunslet, Leeds Pillatt and Co. Ld., Stapleford, Nottingham Furnace Ironwork Alldays & Onions Pneumatic Engineer! ug Co. Ld.. Birmingham Heenan & Fronde Ld., Worcester and Manchestei Leech, Goodall & Co., Hunslet. Leeds Wood, John, and Sons Ld., Wigan Fuse Igniters Fuses (Safety) Cotton Powder Co. Ld.,32, Queen Victoria-st., E.C. Curtis’s and Harvey Ld., Cannon-e>t. House, E.C. Davis, John, and Son (Derby) Ld., Derby Electric Blasting Apparatus Co. Ld., Cinderford Nobel’s Explosives Co. Ld., Glasgow Canister Bricks Gas Compressors Beiliss and Morcom Ld., Birmingham Gas Engines British Oxygen Co.Ld., Elverton-st.,Westminster Glover, M., and Co., Holbeck-lana. Leeds Railway and General Engineering Co. lid., Notts Bobey and Co. Ld., Lincoln Steele, C. and A., Consul ing Engineers, West Bromwich Tangyes Ld., Cornwall Works, Birmingham Gas Exhausters Alldays&OniovsPneumatic Engineering Co. Ld., Birmingham Koppers* (The) Coke Oven and Bye-Product Co., Sheffield Koppers’ (The) Coke Oven and Bye-Product Co., Sheffield Mather and Platt Ld., Manchester Harness Hauling Drums Bever, Dorling and Co. Ld., Bradford Bridge, David, A Co. Ld., Castleton, Manchester Bumsted and Chandler Ld., Hednesford, Staffs. Daglish, Bobert, and Co. Ld., St. Helens, Lancs. Lowmoor Co. Ld., Lowmoor Ironworks, Bradford Heenan A Froude Ld., Worcester and Manchester Norton’s (Tividale) Ld.. Tipton Leech, Goodall A Co., Hunslet, Leeds Phillips, C. D., Newport, Mon. Bobey and Co. Ld., Lincoln Spencer and Co. Ld., Melksham, Wilts Sutcliffe. B., Horbury, near Wakefield Thornewill and Warham Ld., Burton-on-Trent Walker Bros. (Wigan) Ld., Wigan Wood, John, A Sons Ld., Brook Foundry, Wigan Wootton Bros. Ld., Coalville, Leicester Wright, Joseph, and Co., Tipton Youngs, Byland-street Works, Birmingham Headgears Daglish, Eobt., and Co. Ld., St. Helens, Lancs. Heenan A Froude Ld., Worcester and Manchester Leech, Goodall & Co., Hunslet, Leeds Norton’s (Tividale) Ld., Tipton Bobey and Co. Ld., Lincoln* Spencer and Co. Ld., Melksham, Wilts Steele, C. and A., Consulting Engineers, West Bromwich Wright, Joseph, and Co., Tipton Heading Machines Davis, John, and Son (Derby) Ld., Derby Hardy Patent Pick Co. Ld., Sheffield International Channelling Machines Ld., Sheffield Heapsteads Coulson, M., A Co. Ld., Spennymoor, Co. Durham Hardy Patent Pick Co. Ld., Sheffield Head, Wrightson and Co. Ld., Stockton-on-Tees Heenan and Fronde Ld.. Worcester Leech, Goodall A Co., Hunslet, Leeds Longbotham, B. H., and Co. Ld., Wakefield Norton’s (Tividale) Ld., Tipton Plowright Bros. Ld., Chesterfield Spencer and Co. Ld., Melksham, Wilts Walker Bros. (Wigan) Ld., Wigan Wood. John, A Sons Ld.. Brook Foundry, Wigai Wright, Joseph, and Co., Tipton Yorkshire Heunebique Contracting Co. Ld., Leec s Hoists Alldays A Onions Pneumatic Engineering Co. Ld. Birmingham Bleichero’s Aer. al Transporters Ld., 99-100, Pai merston House, Bishopsgate-street, 60, E.C. Daglish, Bobert, and Co. Ld., St. Helens, L&irns. Fraser A Chalmers Ld., 3, London W all Bldgs., E.C. Hardy Patent Pick. Co. Ld., Sheffield Heenan and Froude Ld., Worcester Letch, Goodall & Co., Hunslet, Leeds Mather and Platt Ld., Manchester Mavor and Coulson Ld., 47, Broad-street, Glasgov. Beavell and Co. Ld., Ipswich Spencer aud Co. Ld., Melksham, Wilts Wood, John A Sons Ld., Brook Foundry, Wigan Wright, Joseph, aud Co., Tipton Youngs, Byland-street Works, Birmingham Hooks or Links (Safety) Heenan and Froude Ld., Worcester Humble, Stephen, 9, Victoria-street, S.W Lowmoor Co. Ld., Lowmoor Ironworks, Bradford Ormerod, Edward, Atherton, near Manchester Walker, Thos., and Son Ld., Birmingham Wood, John, A Sons Ld., Brook Foundry, Wigan Wright, Joseph, and Co., Tipton, Staffs, HOPPERS Baker, John, and Son, Bilston, Staffs Coulson, M., and Co. Ld., Spennymoor Harvey, G. A., &Co., Woolwich-rd., London, S.E Hardy Patent Pick Co. Ld., Sheffield Heenan and Froude Ld., Worcester Leech, Goodall A Co., Hunulet, Leeds Hoppers—continued Simon-Carves Ld.. 20. Mount-street, Manchester Spencer and Co. Ld., Melksham, Wilts Theedam, E. C„ Ld.. Dudley Wright, Joseph, and Co., Tipton Yorkshire Hennebique Contracting Co. Ld., Leeds Hose Cort, Arthur, A Co., 303|, Camberwell-rd., London Hardy Patent Pick Co. Ld., Sheffield Mining Engineering Co. Ld., Sheffield Northern Bubber Co., The Wicker, Sheffield Norton’s (Tividale) Ld., Tipton Beddaway, F., A Co. Ld., Pendleton, Manchester Willcox, W. H., A Co. Ld., 23, Southwark-st., S.E. Hose (Coal-Cutter) Northern Bubber Co., Tee Wicker, Sheffield Humidifiers Heenan A Froude Ld., Worcester and Manchester Mather and Platt Ld., Manchester Hydro Electric Plants Hydraulic Machinery Daglish, Bobert, and Co. Ld., St. Helens, Lancs, Hathorn, Davey and Co. Ld., Leeds Leech, Goodall A Co., Hunslet, Leeds Mather and Platt Ld., Manchester Middleton, Robert, Sheepscar Foundry, Leeds Pearn, Frank, A Co., Ld., West Gorton, Manchester Pulsometer Engineering Co. Ld., Beading Tangyes Ld., Cornwall Works, Birmingham Wood, John, A Sons Ld„ Brook Foundry, Wigan Youngs, By land-street Works, Birmingham Hydraulic Reducing Valves Auld, D., and Sons, Whitevale Foundry, Glasgow Hygrometers Davis, John, and Son (Derby) Ld., Derby Incline Rollers Bagnall, W. G., Ld., Stafford Leech, Goodall A Co., Hunslet, Leeds Lowmoor Co. Ld., Lowmoor Ironworks, Bradford INDIARUBBER GOODS Chorley Bail way Wagon Co. Ld., Chorley, Lancs. Cort, Arthur, A Co., 303$. Camberwell-rd., London Northern Bubber Co., The Wicker, Sheffield Beddaway, F., A Co. Ld., Pendleton, Manchester Indicators (Steam Engine) Davis, E., 2, Aire-street, Leeds Davis, John, and Son (Derby) Ld., Derby Green and Boulding Ld., 28, New Bridge-st., E.C. Yorkshire Boiler Co. Ld., Bradford, Yorks Induced Draught Fans Alldays A Onions Pneumatic Engineer in gCo. d Birmingham Bumsted and Chandler Ld., Hednesford, Staffs. Davidson and Co. Ld., Belfast Heenen A Froude Ld.. Worcester and Manchester Keith, James, A Blackman Co. Ld., 27, Farring- don-avenue, London, E.C. Turbon Patent Fan Co. Ld., Llanelly Yorkshire Boiler Co. Ld., Bradford, Yorks 1WE Salford, Manchester Green A Boulding Ld., 28, Now Bridge-st., E.C. Hopkinson, J., and Co. Ld., Huddersfield Pulsometer Engineering Co. Ld., Beading Willcox, W. H., A Co. Ld., 32, Southwark-st., S.E. Instruction (Postal) Thomas, Wm., Cambrian Mining School, Forth Southern, T. A., Universal Mining School, Cardiff Instruments Davis, John, and Son (Derby) Ld., Derby Thornton, A. G., Ld., King-st. West, Manchester Iron and Brass Founders Bridge, David, A Co. Ld., Castleton, Manchester British Wagon Co. Ld., Botherham Chorley Railway Wagon Co Ld., Chorley, Lancs Daglish, Robt., and Co. Ld., St. Helens, Lancs. Jardine, John, Deering-street, Nottingham Lowmoor Co. £»d., Lowmoor Ironworks, Bradford Railwav A General Engineering Co. Ld., Notts Roy les Ld., Irlam, Manchester Spencer and Co. Ld., Melksham, Wilts Wood, John, and Sons Ld., Wigan