March 13, 1914. THE COLLIERY GUARDIAN. 597 JOHN SHAW LTD., Yorkshire Wire Rope Works, SHEFFIELD, ENGLAND. STEEL WIRE ROPES OF EVERY DESCRIPTION. JOHN SHAW (AUSTRALIA) LD., 445, Kent Street, Sydney. 208 pages f’cap folio. Over a hundred illustrations and 60 plates (coloured). PRICE IQs. (IQs. 7d. post free). RECORD OF FIRST SERIES OF THE BRITISH COAL DUST EXPERIMENTS CONDUCTED BY TJHLE COMMITTEE APPOINTED BY THE MINING ASSOCIATION OF GREAT BRITAIN. A Record of the Experiments carried out during 1908 and 1909 at the Aliofts Experiments Station. PUBLISHED BY THE COLLIERY GUARDIAN CO. LTD., 30 & 31, Furnival Street, Holborn, London, E.C. Purchasers’ Guide to Advertisers’ Specialities—(continued). Forces Hardy Patent Pick Co. Ld., Sheffield Keith, Janies, & Blackman Co. Ld., 27* Earring- don-avenue, London, E.C. Standard Engineering Co. Ld., Leicester Forcings Bagnall, W. G., Ld., Stafford Carron Co., Carron, Falkirk Chorley Railway Wagon Co. Ld., Chorley Hardy Patent Pick Co. Ld., Sheffield Lowmoor Co. Ld., Lowmoor Ironworks, Bradford Renton ,B. M., and Co., Midland Works* Sheffield Walker Bros. (Wigan) Ld., Wigan Wright’s Forge and Engineering Co. Ld., Tipton Yorkshire Engine Co. Ld. Sheffield Friotion Clutohes , « m a v v Bever, Dorling, and Co. Ld., Bradford, Yorks. Bridge, David, & Co. Ld., Castleton, Manchester * Daglish, Robert, and Co. Ld., St. Helens, Lancs. Longbotham, R. H., and Co. Ld., Wakefield Norton’s (Tividale) Ld., Tipton Beavell and Co. La., Ipswich Reddaway, F., A Co. Ld., Pendleton, Manchester Theedam, E. C., Ld., Dudley Walker Brothers (Wigan) Ld., Wigan Wild, M. B„ and Co. Ld., Nechells, Birmingham Wood, John, A Sons Ld., Brook Foundry, Wigan Wright’s Forge and Engineering Co. Ld.. Tipton Friction Surfaces Frood, Herbert, Vo. Ld., Cbapel-en-le-Fnth “ Scandinavia ” Belting Ld.. 59, Southwark- street, London, S.E. Fuel Economisers Fell, C. A., Dronfield, near Sheffield Pillatt and Co., Stapleford, Nottingham Fuel Machinery Johnson, Wm.. & Sons (Leeds) Ld., Armley, Leeds Middleton, Robert, Sheepscar Foundry, Leeds Yeadon, Son and Co., Albion-place, Leeds FURNA0E8 Bennis, Ed., and Co. Ld., Little Hulton, Bolton Leech, Goodall & Co., Hunslet, Leeds Pillatt and Co. Ld., Stapleford, Nottingham Furnaoe Ironwork Leech, Goodall A Co., Hunslet, Leeds Wood, John, and Sons Ld., Wigan Fuse Igniters Cotton Powder Co. Ld.,32, Queen Viotoria-st., E.C. Curtis’s and Harvey Ld., Cannon-st. House, E.C. Davis, John, and Son (Derby) Ld., Derby Kynoch-Arklow Ld.. 36, New Broad-st„ London Nobel’s Explosives Co. Ld., Glasgow Gas Compressors Beiliss and Morcom Ld., Birmingham Gas Engines British Oxygen Co.Ld., Elverton-st.,Westminster Glover, M., and Co., Holbeck-lane, Leeds Bobey and Co. Ld., Lincoln Tangyes Ld., Cornwall Works, Birmingham Gas Exhausters Copp6e Co. (Gt. Britain) Ld., Kings way, Lor don, Koppers’ (The) Coke Oven and Bye-Product Co., Sheffield Gas Plant Cop^6e^Co. (Gt. Britain) Ld., Kingsway, London Koppers’ Coke.Oven & Bye-Product Co., Sheffield Matltier and Platt Ld., Manchester Cas-Testino lamps Ackroyd and Best Ld., Morley, Leeds Best’s Safety Lamps Ld., Provider ce W’ks, Leeds Davis, John, and Son (Derby) Ld.. Derby Protector Lamp and Lighting Co. Ld., Eccles, Manchester Teale, W. E., and Co. Ld, Swinton, Lancs. Gas Tubes and Fittings Lewis, Edwin, and Sons, Wolverhampton Stewarts & Lloyds Ld., Birmingham & Glasgow Gas Valves Haslam and Schontheil Ld., Bristol “ KSB” Manufact’ng Co., 13, Wairgate, Sheffield Gauge Glasses Butterworth Bros. Ld., Newton Heath, Man- chester Davis, John, and Son (Derby) Ld., Derby Guilbert-Martin, 9, Edmund-pl„ Aidersgate, E.C. Hopkinson, J., and Co. Ld., Huddersfield Boyles Ld., Irlam, Manchester Teale, W. E., and Co. Ld., Swinton, Lancs. Theedam, E. 0., Ld., Dudley Treasure, J. B., A Co., 8 A12, Vauxhall-rd., L’pool Gauge Glass Protectors Butterworth Bros. Ld., Newton Heath, Manch’er Hopkinson, J., and Co. Ld., Huddersfiela Boyles Ld., Irlam, Manchester Teale, W. E.,and Co. Ld., Swinton, Lares. Theedam, E. C., Ld., Dudley Gauges Hopkinson, J., and Co. Ld.. Huddersfield Gear (Special for Motor Lorries Gars &o.) Brown, David, A Sons (Hudd.) Ld., Huddersfield Gearing British Insulated and Helsby Cables Ld., Prescot Brown, David, A Sons (Hudd.) Ld., Huddersfield Bumsted and Chandler Ld., Hednesford, Staffs. Coventry Chain Co. Ld., Coventry Daglish, Robert, and Co. Ld., St. Helens, Lancs. Jardine, John, Deering-street, Nottingham Lancaster and Tonge Ld., Pendleton, Manchester Leech, Goodall & Co., Hunslet, Leeds Walker Brothers (Wigan) Ld., Wigan Wild, M, B., and Co. Ld., Nechells, Birmingham Wood. John, and Son Ld., Brook Foundry, Wigan Cirdem (Iron and Steel) Daglish, Robt., and Co. Ld., St. Helens, Lancs. Firth, Wm., Ld., Gieek-street Chambers, Leeds Henderson and Glass, Liverpool Isca Foundry Co.. Newport, Mon. Johnston, John, Attercliffe Boiler Wks., Sheffield Benton, B. M., and Co., Midland Works, Sheffield Scott, Walter, Ld., Leeds Steel Works, Leeds Shelton Iron, Steel and Coal Co. Ld., Stoke-on- Trent, Staffs. Ward, Thos. W,. Limited, Albion Works, Sheffield Glass Manufacturers (Tube Rods Enamels) Butterworth Bros. Ld., Newton Heath, Manch’er Guilbert-Martin, 9, Edmund-pl., Aidersgate, E.C. Governors (Engine) Evans, Joseph, and Sons (Wolverhampton) Ld., Wolverhampton Hollingdrake. Henry, and Son, Ld., Stockport Mather and Platt Ld., Manchester Daglish, Bobt., and Co. Ld., St. Helens, Lancs. Tangyes Ld.. Cornwall Works Birmingham Granary Equipment Porteus, George, Leeds Bridge, Leeds CREASE Chorley Bailway Wagon Co. Ld., Chorley, Lancs. Trier Bros., Caxton House, Westminster Theedam, E. C., Ld., Dudley Thomas and Bishop, 119-125, Finsbury Pav., E.C. Wakefield, C. 0., A Co., Cheapside, London, E.C. Grinding Machinery Bradley Pulverizer Co., 37. Walbrook Bridge, David, A Co. Ld., Castleton, Manchester Hardy Patent Pick Co. Ld.. Sheffield Johnson, Wm., & Sons (Leeds) Ld., Armley, Leeds Gunpowder Curtis’s and Harvey Ld., Cannon-st. House, E.C. Harness Legard and Son, Leather Merchants Barnsley Hauling Drums Bever, Dorling and Co. Ld., Bradford Bridge, David, A Co. Ld., Castleton, Manchester Bumsted and Chandler Ld., Hednesford. Staffs. Carron Co., Carr n, Falkirk Daglish, Robert, and Co. Ld., St. Helens, Lancs. Lowmoor Co. Ld., Lowmoor Ironworks, Bradford Norton’s (Tividale) Ld.. Tipton Leech, Goodall A Co., Hunslet, Leeds Mining Appliances Co., 32, Church-st., Sheffield Phillips, C. D., Newport, Mon. Robey and Co. Ld., Lincoln Spencer and Co. Ld., Melksham, Wilts Sutcliffe, B., Horbury, near Wakefield Walker Bros. (Wigan) Ld., Wigan Wild, M. B., and Co .Ld., Nechells, Birmingham Wood, John, A Sons Ld., Brook Foundry, Wigan Wootton Bros. Ld., Coalville. Leicester Wright’s Forge and Engineering Co. Ld., Tipton Youngs, Byland-street Works, Birmingham Headgears Daglish, Bobt.. and Co. Ld., St. Helens, Lancs. Leech, Goodall & Co., Hunslet, Leeds Norton’s (Tividale) Ld., Tipton Bobey and Co. Ld., Lincoln Spencer and Co. Ld., Melksham, Wilts Wright’s Forge and Engineering Co. Ld., Tipton Heading Machines Davis, John, and Son (Derby) Ld., Derby Hardy Patent Pick Co. Ld., Sheffield International Channelling Machines Ld., Sheffield Sullivan Machinery Co., Salisbury House, London Wall, E.C. Heapsteads Coulson, M., A Co. Ld., Spennymoor, Co. Durham Hardy Patent Pick Co. La., Sheffield Head, Wrightson and Co. Ld., Stockton-on-Tees Leech, Goodall A Co., Hunslet. Leeds Longbotham, R. 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, Wright’s Forge and Engineering Co. Ld.. Tipton Yorkshire Hennebique Contracting Co. Ld., Leers Hoists Bleichert's Aerial Transporters Ld., 36, New Broad-street, E.C. Daglish, Robert, | ind Co. Ld., St. Helens, Lanes. Hardy Patent Pick Co. Ld., Sheffield Leech, Goodall A Co., Hunslet, Leeds Mather and Platt Ld., Manchester Mavor and Coulson Ld., 47, Broad-street, Glasgow Beavell and Co. Ld., Ipswich Spencer and Co. Ld., Melksham, Wilts wild, M. B„ ai d Co. Ld.. Nechells, Birmingham Wood, John A Sons Ld., Brook Foundry, Wigan Wright’s Forge and Engineering Co. Ld., Tipton Youngs, Ryland-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 Wood, John, A Sons Ld., Brook Foundry, Wigan Wright’s Forge and Engineering Co. Ld., Tipton Hoppers Baker, John, and Son, Bilston, Staffs Coulson, M., and Co. Ld., Spennymoor Harvey, G. A., A Co. (London) Ld., Woolwich road, S.E. Hardy Patent Pick Co. Ld., Sheffield Hoppers—continued • Leech. Goodall A Co., Hunslet. Leeds Simon-Carves Ld.. 20. Mount-street. Manchester Spencer and Co. Ld., Melksham, Wilts Theedam, E. C„ Ld., Dudley Wright’s Forge and Engineering Co. Ld., Tipton Yorkshire Hennebique Contracting Co. Ld., Leeds Angus, Geo., A Co. Ld., Newcastle.on-Tpne Hardy Patent Pick Co. Ld., Sheffield Mining Engineering G’o. Ld., Sheffield Norton’s (Tividale) Ld., Tipton Beddaway, F., A Co. Ld., Pendleton, Manchester Willcox, W. H„ A Co. Ld., 23, Southwark-st., 8.E Humidifiers Mather and Platt Ld., Manchester Hydraulio Maohinery Daglish, Robert, and Co. Ld., St. Helens, Lancs. Hathorn, Davey and Co. Ld., Leeds Leech, Goodall A Co., Hunslet, Leeds Mat,bar and Platt Ld.. Manchester Middleton, Robert, A Co. Sheepscar F’ndry, Leeds Pearn, Frank, A Co., Ld., West Gorton, Manchester, Pulsometer Engineering Co. Ld., Beading Sullivan Machinery Co., Salisbury House, London Wall, E.C. Tangyes Ld., Cornwall Works, Birmingham Wood, John, A Sons Ld., Brook Foundry, Wigan Youngs, Byland-street Works, Birmingham Hydraulio Reducing Valves Auld, D., and Sons, Whitevale Foundry, Glasgow Hygrometers Davis, John, and Son (Derby) Ld.. Derby Winter. T. B., and Son, 21, Grey-st., Newcastle on-Tyne Incline Rollers Bagnall, W. G., Ld., Stafford Leech, Goodall A Co., Hunslet, Leeds Lowmoor Co. Ld., Lowmoor Ironworks, Bradford Indiarubber Goods Chorley Bailway Wagon Co. Ld., Chorley, Lancs. Beddaway, F., A Co. Ld., Pendleton, Manchester Indicators (Steam Engine) Davis, John, and Son (Derby) Ld., Derby Induoed Draught Fans Bumsted and Chandler Ld., Hednesford, Staffs. Davidson and Co. Ld., Belfast Heenan A Froude Ld., Worcester and Manchester Keith, James, A Blackman Co. Ld., 27, Farring- don-avenue, London, E.C. Standard Engineering Co. Ld., Leicester Turbon Patent Fan Co. Ld., Llanelly Injectors and Ejeotors Bailey, Sir W. H., A Co. Ld., Salford, Manchester Hopkinson, J., and Co. Ld., Huddersfield Pulsometer Engineering Co. Ld., Beading Willcox, W. H., A Co. Ld., 32, Southwark-st., S.E. Instruction (Postal) Electro-Technical Bureau, 312, Deansgate, Man- chester Southern, T. A., Universal Mining School, Cardift Thomas, Wm., Cambrian Mining School, Forth Instruments Davis, John, and Son (Derby) Ld., Derby Thornton, A. G., Ld.. King-st. West, Manchester Winter, T. B., and Son, 21, Grey-st., Newcastle on-Tyne Iron and Brass Founders Bridge, David, A Co. Ld., Castleton, Manchester British Wagon Co. Ld., Bother ham Chorley Bailway Wagon Co Ld., Chorley, Lancs. Daglish, Bobt., and Co. Ld.. St. Helens, Lancs. Goaf orth Foundry Co. Ld„ Dronfield, nr. Sheffield Jardine, John, Deering-street, Nottingham Lowmoor Co. lud., Lowmoor Ironworks, Bradford Protector Lamp and Lighting Co. Ld., Eccles, Manchester Boyles Ld., Irlam, Manchester Spencer and Co. Ld., Melksham, Wilts Wood. John, and Sons Ld., Wigan