262 THE COLLIERY GUARDIAN. January 31, 1913. Purchasers’ Guide to Advertisers’ Specialities—(continued). Smith Work Baker, John, and Son, Bilston, Staffs British Wagon Co. Ld., Botherham Heenan and Fronde Ld., Worcester Lowmoor Co. Ld., Lowmoor Ironworks, Bradford Wright, Joseph, and Co., Tipton Smoke Helmets Siebe, Gorman and Co. Ld., Westminster, S.E. Speed-Reducing Gears Bridge, David, & Co. Ld., Castleton, Manchester Brown, David, & Sons (Hndd.) Ld., Huddersfield Wood, John, and Sons Ld., Wigan Sphimoter Grip Armoured Hose Beddaway, F., A Co. Ld., Pendleton, Manchester Springs British Wagon Co. Ld., Botherham Lancaster and Tonge Ld., Pendleton, Manchester Wigan Wagon Co. Ld., Springs Branch, Wigan Stampings Baker, John, and Son, Bilston, Staffs Chorley Bailway Wagon Co. Ld., Ohorley Hardy Patent Pick Co. Ld., Sheffield Lowmoor Co. Ld., Lowmoor Ironworks, Bradford Steam Experts Fell, C. A., Dronfield, near Sheffield Boyles Ld., Irlam, Manchester Steam Fittings British Mannesmann Tube Co. Ld., London Wall Green and Boulding Ld., 28, New Bridge-st., E.C. Hopkinson, J., and Co. Ld., Huddersfield Boyles Ld., Irlam, Manchester' Bussell, John, and Co. Ld., Alma Works, Walsall Spencer, John, Ld., Tube Works, Wednesbury Stewarts and Lloyds Ld., Birmingham A Glasgow Wellington Tube Works Ld., Great Bridge, Staffs. Steam Mains and Pipe Installations Stewarts and Lloyds Ld., Birmingham & Glasgow Wellington Tube Works Ld., Great Bridge, Tipton Steam-Saving Appliances Pillatt and Co. Ld., Stapleford, Nottingham Boyles Ld., Irlam, Manchester Yorkshire Boiler Co. Ld., Bradford Steam Traps Alley and MacLellan Ld., Polmadie, Glasgow Auld, D., and Sons, Whitevale Foundry, Glasgow Bailey, W. H., and Co. Ld., Salford, Manchester Hopkinson, J., and Co. Ld., Huddersfield Lancaster & Tonge Ld., Pendleton, Manchester Boyles Ld., Irlam, Manchester Stewarts & Lloyds Ld., Birmingham and Glasgow United States Metallic Packing Co. Ld„ Bradford Wright, Joseph, and Co., Tipton Steam Winohes Bridge, David, A Co. Ld., Castleton, Manchester Clarke, Chapman A Co. Ld.. Gateshead-on-Tyne Phillips, C. D., Newport, Mon. Wood, John, and Sons Ld., Wigan Steel Cooke, William, and Co. Ld., Tinsley, Sheffield Hardy Patent Pick Co. Ld., Sheffield Latch and Batchelor Ld., Hay Mills, nr. B*ham Mining Engineering Co. Ld. (The), Sheffield Shelton Iron, Steel & Coal Co. Ld., Stoke-on-Trent Stewarts & Lloyds Ld., Birmingham and Glasgow Thompson and Co., Wigan Waterfall, H. A B., A Barber, Bridge-st., Sheffield Steel Blooms Billets Benton, B. M., and Co., Sheffield Scott, Walter, Ld., Leeds Steel Works, Leeds Steel Flats and Rounds Scott, Walter, Ld., Leeds Steel Works, Leeds Steel Tinbars Scott, Walter, Ld., Leeds Steel Works, Leeds Stencil Plates, Steel Stamps, &c. Pryor, Edward, & Son, 68, West-street, Sheffield Stone Breakers Hardy Patent Pick Co. Ld„ Sheffield Bobey and Co. Ld., Lincoln Structural Steel Work Hardy Patent Pick Co. Ld., Sheffield Heenan ana Froude Ld., Worcester Leech, Goodall A Co.. Hunslet, Leeds Norton’s (Tividale) Ld., Tipton Bailway and General Engineering Co. Ld., Notts Scott, Walter, Ld., Leeds Steel Works, Leeds Wright, Joseph, and Co., Tipton Sulphate of Ammonia Plant Koppers/ (^e) Coke Oven and Bye-Product Co., Simon-Carves Ld., 20, Mount-street, Manchester Sulphur Recovery Plaht Coke Oven Construction Co. Ld., Sheffield Daglish, Bobt., and Co. Ld., St. Helens, Lancs. Koppers’ (The) Coke Oven and Bye-Product Co., Sheffield Superheaters Clarke, Chapman A Co. Ld., Gateshead-on-Tyne Heenan A Froude Ld., Worcester and Manchester Pulsometer Engineering Co. Ld., Beading Stringer, John, and Son, Dept. 11, Blackburn Surgical Appliances Surplus Steam Valves (Full Bore) Alley and MacLellan Ld., Polmadie Glasgow Auld, D., and Sons, Whitevale Foundry, Glasgow Hopkinson, J., and Co. Ld.. Huddersfield Boyles Ld., Irlam, Manchester Surveying (Books on) . _ , „ Thomas, Wm„ Cambrian Mining School, Forth Surveying (Instruction) Thomas, Wm., Cambrian Mining School, Forth Surveying Instrument Makers Davis, E., 2, Aire-street, Leeds Davis, John, and Son (Derby) Ld., Derby Barling, W. H., 47, Finsbury Pavement, London Stanley, W. F„ A Co. Ld.. 286, High Holborn, W.C. Thornton, A. G., Ld., King-st. West, Manchester Switoh Boards Davis, John, and Son (Derby) Ld., Dei by Haslam and Schontheil Ld., Cardiff Switoh Gear British Insulated and Helsby Cables Ld., Prescot D