April 25, 1913. THE COLLIERY GUARDIAN. 881 A CHEAP YET MOST EFFICIENT INSULATOR AGAINST HEAT RADIATION IZ F N ’ Q SPECIALLY rV Kwr I I > COMPOUNDED “KISOL” (REGISTERED) CEMENT Sample 1 cwt. bag sent carriage paid to any address for 7s. 6d. ASK FOR “HINTS” ON COVERING STEAM PIPES, BOILERS, &c. . . ---Post Free on Application.- WM. KENYON & SONS Ltd., DUKINFIEl D, nr* MANCHESTER. I 5ource WE CAN THE COAL DUST AT YOUR PITHEAD (Tipplers, Screens, Belts, &c.) is A of Trouble. COLLECT CORES! CORES! CORES! CORES! THE NEW CALYX DRILL & BORING 0° LD 120, East Ferry Road. Millwall, LONDON, E. it Pneumatically and CREATE a BORING FOR COAL AND MINERAL PROSPECTING, ARTESIAN WELLS, &c. LARGE CORES A SPECIALITY. Patent Appliances for ensuring the verticality of bores. CONTRACTS COMPLETED TO DATE- 60,000 ft., from 50U to 3,600 ft. Core of 8 in. diameter has been produced at a depth of 3,000 ft. by this system. Estimates given for any depth or size. Complete Drilling Outfits Supplied for Foreign Contracts. VALUABLE ASSET FOR YOU Fans for GH, rWA Write us (C.G.), Fan Dept., ALLDAYS & ONIONS Engineering ^0 L(L, BIRMINGHAM. Purchasers’ Guide to Advertisers’ Specialities—(continued). Forces Alldays A 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. Standard Engineering Co. Ld., Leicester Forgings Bagnall, W. G., Ld„ Stafford Chorley Bailway Wagon Co, Ld., Chorley Gwalia Forge Co., Caergwrle, Wrexham 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’s Forge and Engineering Co. Ld„ Tipton Yorkshire Emrine Co. Ld, Sheffield Friction Clutches Bever, Dorling, and Co. Ld., Bradford, Yorks. Bridge, David, A Co. Ld., Castleton, Manchestei Daglish, Bobert, and Co. Ld., St. Helens, Lancs. Fraser A Chalmers Ld., 3, London Wall Bldgs., E.C. Longbotham, B. H., and Co. Ld., Wakefield Norton’s (Tividale) Ld., Tipton Beavell and Co. La., Ipswich Beddaway, F., A Co. Ld., Pendleton, Manchester Theedam, E. C., Ld., Dudley Walker Brothers (Wigan) Ld., Wigan Wood, John, A Sons Ld., Brook Foundry, Wigan Wright’s Forge and Engineering Co. Ld.. Tipton Friction Surfaces Erood, Herbert, Co. Ld., Chapel-en-le-Frith Fuel Economisers 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-place, Leeds Furnaces Alldays & Onions Pneumatic Engineering Co. Ld., Birmingham Bennis, Ed., and Co. Ld., Little Hulton, Bolton Leech. Goodall A Co., Hunslet, Leeds Pillatt and Co. Ld.. Stapleford, Nottingham Furnace Ironwork Alldays A Onions Pneumatic Engineering Co. Ld., Birmingham Heenan A Froude Ld., Worcester and Manchester Leech, Goodall A 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-st. House, E.C. Davis, John, and Son (Derby) Ld., Derby Electric Blasting Apparatus Co. Ld., Cinderford Nobel’s Explosives Co. Ld., Glasgow Ganister Bricks 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 Alldays A Onions Pneumatic Engineering Co. Ld., Birmingham Koppers’ (The) Coke Oven and Bye-Product Co., Sheffield Gas Plant Koppers’ (The) Coke Oven and Bye-Product Co., Sheffield Mather and Platt Ld., Manchester 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.. A Co., 8 A12, 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. Ld., Bradford CEAft (Special for Motor Lorries Cars &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. Daglish, Robert, 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 Froude Ld., Manchester Henderson and Glass, Liverpool Isca Foundry Co.. Newport, Mon. 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. Wal’d, Thos. W.. Limited. Albion Works. Sheffield Class Manufacturers (Tube Rods Enamels) Guilbert-Martin. 9. Edmund-pl., Aldersgate, E.C. Governors (Engine) Evans, Joseph, and Sons (Wolverhampton) Ld., W ol verhampton Hollingdrake. Henry, and Son, Ld., Stockport Mather and Platt Ld., Manchester Daglish, Bobt., and Co. Ld., St. Helens, Lancs. Tangyes Ld., Cornwall Works, Birmingham Governors (Hydraulic) Grease Ghorley Bailway Wagon Co. Ld., Chorley, Lancs- Gaunt and Hickman, Wolverhampton Hull Oil Manufacturing Co. Ld., Stoneferry, Hull Trier Bros., Carton 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. 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 Peroha Cort, Arthur, A Co. 303$, Camberwell-rd., London Harness Legard and Son, Leather Merchants Barnsley Hauling Drums Sever, Dorling and Co. Ld., Bradford Bridge, David, & Co. Ld., Castleton, Manchester Bumsted and Chandler Ld., Hednesford, Staffs. Daglish, Robert, 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. Robey and Co. Ld., Lincoln Spencer and Co. Ld., Melksham, Wilts Sutcliffe, R., Hot bury, near Wakefield 1 hornewill and Warham Ld., Burton-on-Trent Walker Bros. (Wigan) Ld., Wigan Wood, John, A Sons Ld., Brook Foundry, Wigai Wootton Bros. Ld., Coalville, Leicester Wright’s Forge and Engineering Co. Ld., Tipton Youngs, Ryland-street Works, Birmingham Headgears Daglish, Robt., and Co. Ld., St. Helens, Lancs. Heenan A Froude Ld., Worcester and Manchester Leech, Goodall & Co., Hunslet, Leeds Norton’s (Tividale) Ld., Tipton Robey 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 Heapsteads Coulson, M., & Co. Ld., Spennymoor, Co. Durham Hardy Patent Pick Co. Ld., Sheffield Head, Wrightson and Co. Ld., Stookton-on-Tees Heenan and Froude Ld., Worcester Leech, Goodall A Co., Hunslet, Leeds Longbotham, R. H., and Co. Ld., Wakefield Norton’s (Tividale) Ld., Tipton Plowright Bros. La., Chesterfield Spencer and Co. Ld., Melksham, Wilts Walker Bros. (Wigan) Ld., Wigan Wood. John, A Sons Ld.. Brook Foundry, Wigai Wright’s Forge and Engi fering Co. Ld.. Tipton Yorkshire Hennebique Contracting Co. Ld., Leec s Hoists Alldays & Onions Pneumatic Engineering Co. Ld. Birmingham Bleichert’s Aerial Transporters Ld., 36, New Broad-street, E.C. Daglish, Robert, and Co. Ld., St. Helene, Lames. Fraser & Chalmers Ld., 3, London Wall Bldgs., E.C. Hardy Patent Pick Co. Ld., Sheffield Heenan and Froude Ld., Worcester Leech, Goodall & Co., Hunslet, Leeds Mather and Platt Ld., Manchester Mavor and Coulson Ld., 47, Broad-street, Glasgow Bea veil and Co. Ld., Ipswich Spencer and Co. Ld., Melksham, Wilts Wood, John & Sons Ld., Brook Foundry, Wiarai Wright’s Forge an 1 Ensmeering Co. Ld., Tipton Youngs, Rviand-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. Wio-sn Wiight’s Forge and Engineering Co. Ld., Tipton 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., Hunslet, Leeds Hoppers—continued 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 Hose Cort, Arthur, A Co., 303$, Camberwell-rd., Londe n 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 Bubbex Co., Tee Wicker, Sheffield Humidifiers Heenan A Froude Ld., Worcester and Manchester Mather and Platt Ld., Manchester Hydro Electric Plants Hydraulic Maohinery Daglish, Bobert, and Co. Ld., St. Helens, L ancs. Hathorn, Davey and Co. Ld., Leeds Leech, Goodall A Co., Hunslet, Leeds Mather and Platt Ld., Manchester Middleton, Bobert, 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, Byland-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 Engineering Co. Ld. Birmingham 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 Yorkshire Boiler Co. Ld., Bradford, Yorks Injectors and Ejectors Bailey, Sir W. H., & Co. Ld., Salford, Manchester Green A Boulding Ld., 28, New 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, Porth 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., Bother ham Chorley Bailway Wagon Co Ld., Chorley, Lancs Daglish, Bobt., and Co. Ld., St. Helens, Lancs. Jardine, John, Deering-street, Nottingham Lowmoor Co. -Ld., Lowmoor Ironworks, Bradford Boyles Ld., Irlam, Manchester Spencer and Co. Ld., Melksham, Wilts Wood, John, and Sons Ld., Wigan