September 25, 1914. TSE COLLIERY GUAitDiAN 691 Tlrii?dL Edition. Bound in Cloth. IQs, net. Analyses of British Coals and Coke. A GUIDE TO THE PURCHASE OF COAL. COMPILED BY ALLAN GREENWELL, F.G.S., Assoc.M.lnst.C.E., M.lnstM.E. AND J. V. ELSDEN, F.G.S., D.Sc.(Lond.). THE COLLIERY GUARDIAN COMPANY LIMITED, 30 & 3 1, Furnival Street, Holborn, London, E.C. INDISPENSABLE TO STUDENTS. THE Mechanical Engineering of Collieries. By T. CAMPBELL FUTERS, M.LM.E. THIS IMPORTANT WORK CONSISTS OF:— Vol. I.—Bound in Cloth. Price 21s. net. Part I.—Boring, Sinking, Surface Arrangements, Headgears, Shafts. 128 pp. Illustrated by 294 Diagrams and Illus- trations. Part II.—Winding. 169 pp. Illustrated by 337 Diagrams and Illustrations. Part III.—Heapsteads, Screening and Washing. 177 pp. Illus- trated by 427 Diagrams and Illustrations. Separate parts in Paper Covers, Price 5s. 8d. each net. Vol. II.—Haulage, Pumping, Power and Coke Ovens, and a Complete Index to Vols. I. and II. 294 pp. Illustrated by 585 Diagrams and Illustrations. Paper Covers, Price 8s. 6d.; Bound in Cloth, 10s. 6d. net. SUPPLEMENTARY VOL.—Ventilating Fans, Coal-Cutting and Conveying Machinery, Ambulance and Rescue Appliances. 238 pp. Illustrated by 294 Diagrams and Illustrations. Paper Covers. Price 8s. 6d ; Bound in Cloth, 10s. 6d. net. Publishers : THE COLLIERY GUARDIAN CO. LTD., 30 & 31, Furnival Street, Holborn, London, E.C. Purchasers’ Guide to Advertisers’ Specialities—(continued). ENGINES (Oil)—Oelmotoren—Moteurs d huile Avonside Engine Co. Ld., Bristol Beiliss and Morcom Ld., Birmingham Robey and Co. Ld., Lincoln Tangyes Ld., Cornwall Works, Birmingham Engines (Rolling Mill) — Waizwerkmuschinen— Machines pour laminoirs Daglish, Robt., and Co. Ld., St. Helens, Lancs. ENGINES (Steam)— Dampfmaschinen—Machines a vapeur Beiliss and Morcom Ld., Birmingham Bever, Dorling and Co. Ld., Bradford Bumsted and Chandler Ld., Hednesford, Staffs Daglish, Robert, and Co. Ld., St. Helens, Lancs. Hathorn, Davey and Co. Ld., Leeds Lancaster and Tonge Ld., Pendleton, Manchester Llewellyn and Cubitt Ld., Pentre, R.S.O., Glam. Pulsometer Engineering Co. Ld., Reading Reavell and Co. Ld., Ipswich Robey and Co. Ld., Globe Works, Lincoln Sandycroft Ld., Sandy croft, near Chester Stewarts and Lloyds Ld., Birmingham Stewarts and Lloyds Ld., 41, Oswald-st., Glasgow Tangyes Ld., Cornwall Works, Birmingham Walker Brothers (Wigan) Ld., Wigan Ward, Thos. W., Ld., Albion Works, Sheffield Wood, John, and Sons Ld., Wigan Wootton Bros. Ld., Coalville, Leicester Worsley Mesnes Ironworks Ld., Wigan Exhaust Turbine Reducing Valves—Reduzier- ventile fur Abdampfturbinen—Soupapes reduc- trices pour turbiness d vapeur d’ dchappement Auld, D., and Sons, White vale Foundry, Glasgow Royles Ld., Irlam, Manchester Exhaust Turbine Safety Valves — Sicherheits- ventile far Adampfturbinen—Soupapes a sfrretd pour turbines d vapeur■ d’echappement Auld, D., and Sons, White vale Foundry, Glasgow Exhibition (Colliery and Mining)— Bergbau- ausstellung—Exposition miniere EXPANSION Gear — Expansions - Vorrichtungen — Appareils de detente , Daglish, Robert, and Co. Ld., St. Helens, Lancs. Wood, John, and Sons Ld., Wigan Worsley Mesnes Ironworks Ld., Wigan Explosives -Sprengstoffe—Expiosifs British Explosives Syndicate Ld., Glasgow 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 New Explosives Co. Ld., 62, London-wall, E.C. Nobel’s Explosives Co. Ld., Glasgow Thompson and Co., Wigan Explosives (Permitted) — Genehmigte Spreng- stoffen—Expiosifs autorists Cotton Powder Co. Ld., 32, Queen Victoria-st., E.C. Curtis’s and Harvey Ld., Cannon-st. House, E.C. New Explosives Co. Ld., 62, London-wall, E.C. Nobel’s Explosives Co. Ld., Glasgow FANS (Air Propeller)— Bruckventilatoren—Roues de ventilation Davidson and Co. Ld., Belfast Keith, James, and Blackman Co. Ld., 27, Farring- don-avenue, London, E.C. FANS (Exhaust)—Saugventilatoren—Ventilateurs d exhaure Bumsted and Chandler Ld., Hednesford, Staffs CapellFans (George Fletcher&Co.Ld.),Litchurch, Derby Daglish, Robert, and Co. Ld., St. Helens, Lancs. Davidson and Co. Ld., Belfast Fletcher, George, and Co. Ld., Litchurch, Derby Harvey, G. A. & Co. (Ldn.) Ld., Woolwich-rd., S.E. Jeffrey Manufacturing Co.—for Agents see advert. Fans (Exhaust)—continued. Keith, James, and Blackman Co. Ld., 27, Farring- don-avenue, London, E.C. Turbon Patent Fan Co. Ld., Llanelly Waddle Patent Fan & Engineering Co. Ld., Llanelly Walker Brothers (Wigan) Ld., Wigan FANS (VENTILATING) —Minenventilatoren — Venti- lateurs d’aerage Allen, W. G., and Sons (Tipton) Ld., Tipton Bumsted and Chandler Ld., Hednesford, Staffs. Capell Fans (George Fletcher & Co.Ld.),Litchurch, Derby Daglish, Robert, and Co. Ld., St. Helens, Lancs. Davidson and Co. Ld., Belfast Fletcher, George, and Co. Ld., Litchurch, Derby Harvey, G. A., & Co. (Ldn.) Ld., Woolwich-rd., S.E. Humble, Stephen, 9, Victoria-st., London, S.W. Jeffrey Manufacturing Co.—for Agents see advert. Keith, James, and Blackman Co. Ld.,27, Farring- don-avenue, London, E.C. Lewis, Wm., and Son, Bilston, Staffs. Llewellyn andCubitt Ld., Pentre, R.S.O., Glam. Theedam, E.C., Ld., Dudley Turbon Patent Fan Co. Ld., Llanelly Waddle Patent Fan & Engineering Co.Ld., Llanelly Walker Brothers (Wigan) Ld., Wigan Feed-Water Filters — Spiesewasserjuter—Filtres d’eau d’alimentation Mather and Platt Ld., Manchester Wright’s Forge and Engineering Co. Ld., Tipton FEED-WATER Heaters — Speisewasservorwarmer— Rechauffeurs d’eau d’alimentation Bakers (Leeds) Ld., Hunslet, Leeds Clarke, Chapman and Co. Ld., Gateshead-on-Tyne Hawksley, Wild and Co., Sheffield Lancaster and Tonge Ld., Pendleton, Manchester Royles Ld., Irlam, Manchester Tangyes Ld., Cornwall Works, Birmingham Wright’s Forge and Engineering Co. Ld., Tipton FENCING AND Gates — Umzdunungen u. Tore — Clotures et portes Bayliss, Jones and Bayliss Ld., Wolverhampton Ferro - Concrete Constructions—Eisenbeton- konstruktionen—Constructions en beton arrnd Yorkshire Hennebique Contracting Co. Ld., Leeds FI LES—Feilen—Limes Allen, Edgar, and Co. Ld., Sheffield Hardy Patent Pick Co. Ld., Sheffield Nicholson, Benjamin, & Sons, Attercliffe, Sheffield FILTERS (Oil)—Oelfilter—Filtres d’huile Pulsometer Engineering Co. Ld., Reading Royles Ld., Irlam, Manchester Theedam, E. C., Ld., Dudley Wakefield, C. C., and Co., 27, Cannon-st., E.C. Willcox, W. H., and Co. Ld., London, S.E. Wright’s Forge and Engineering Co. Ld., Tipton Filters (Water and Crease)-Wasser- undFett- filter — Filtres d’eau et de graisse Bakers (Leeds) Ld., Hunslet, Leeds Mather and Platt Ld., Manchester Pulsometer Engineering Co. Ld., Reading Royles Ld., Irlam, Manchester Wright’s Forge and Engineering Co. Ld., Tipton FlRE APPLIANCES — Feuerliischer — Extincteurs d’incendie Angus, Geo., and Co. Ld., Newcastle-on-Tyne Fell, C. A., Dronfield, near Sheffield Merry weather and Sons, 63, Long Acre, W.C. Reddaway, F., & Co. Ld., Pendleton, Manchester Valor Co. Ld., Aston Cross, Birmingham FlRE Brick CONES—Chamottekegel—Cones rifrac- taires Fire Bricks Lumps and Titts-chamottesteine, udgl.—Briques et tuiles rdfractaires FIRECLAY Goods — Chamottewaren — Arti&les en argile refractaire Witton Firebrick Co. Ld., Darlington FIREWOOD MACHINERY — Brennholzverarbeitungs - maschinen—Machines d fabriquer le bois d’allu- mage Glover, M., and Co., Holbeck-lane, Leeds Firelighter Machinery—Feueranzunder-herstei- lungs - maschinen — Machines a fabriquer les allume-feu Glover, M., and Co., Holbeck-lane, Leeds Fishplates—Laschen—EcUsses Bute Works Supply Co. Ld., Cardiff Firth, William, Ld., Leeds Renton, B. M., and Co., Midland Works, Sheffield Shelton, Iron, Steel, & Coal Co. Ld., Stoke-on-Trent Ward, Thos. W., Ld., Albion Works, Sheffield Fittings (Iron and Steel) -zubehor aus Eisen und Stahl—Garnitures en fer et en acier Chorley Railway Wagon Co. Ld., Chorley, Lancs. Stewarts and Lloyds Ld., Birmingham FORCED Draught—Bruckzug- Tirage forct Bennis, Ed., and Co. Ld., Little Hulton, Bolton Bumsted and Chandler Ld., Hednesford, Staffs. Davidson and Co. Ld., Belfast Keith, James, and Blackman Co. Ld.,27, Farring- don-aveniie, London, E.C. Pillatt and Co. Ld., Stapleford, Nottingham Turbon Patent Fan Co. Ld., Llanelly FORCES" Schmiede—Forges Hardy Patent Pick Co. Ld., Sheffield Keith, James, and Blackman Co. Ld., 27, Farring- don-avenue, London, E.C. FORCINGS—Schmiedstucke—Fers forges 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 Worsley Mesnes Ironworks Ld., Wigan Wright’s Forge and Engineering Co. Ld., Tipton Yorkshire Engine Co. Ld., Sheffield Friction Clutches — Friktionskuppiungen—Em- brayages d friction Bever, Dorling, and Co. Ld., Bradford, Yorks Bridge, David, and Co. Ld., Castleton, Manchester Daglish, Robert, and Co. Ld., St. Helens, Lancs. Nortons (Tividale) Ld., Tipton Reavell and Co. Ld., Ipswich Reddaway, F., & Co. Ld., Pendleton, Manchester Theedam, E. C., Ld., Dudley Walker Brothers (Wigan) Ld., Wigan Wild, M. B., and Co. Ld., Nechells, Birmingham Wood, John, & Sons Ld., Brook Foundry, Wigan Worsley Mesnes Ironworks Ld., Wigan Wright’s Forge and Engineering Co. Ld., Tipton Friction Surfaces — Futter fur Friktionskup - plungen, udgl.—Fourrures d’ emb ray ages, &c. Frood, Herbert, Co. Ld., Chapel-en-le-Frith Scandinavia Belting Co.Ld., 59, Southwark-st.,S.E. Worsley Mesnes Ironworks Ld., Wigan FUEL ECONOMISERS—Kohlensparer—Economiseurs de combustible Fell, C. A., Dronfield, near Sheffield Pillatt and Co. Ld., Stapleford, Nottingham FUEL Machinery — Brennstoffebearbeitungs- maschinen—Machines d traiter les combustibles Johnson, Wm. & Sons (Leeds) Ld., Armley, Leeds Middleton, Robert, Sheepscar Foundry, Leeds Yeadon, Son and Co., Albion-place, Leeds FURNACES—Kesselfeuerungen—Foyers a chaudieres Bennis, Ed. and Co./Ld., Little Hulton, Bolton Leech, Goodall and Co., Hunslet, Leeds Pillatt and Co. Ld., Stapleford, Nottingham FURNACE Bars—Roststabe—Barreaux de grille Heywood Airtight Damper Co. Ld., Gomersal, Leeds FURNACE IRONWORK — Eisenkonstructionsteile fur Feuerungsanlagen—Serrurerie pour des installa- tions de foyers Leech, Goodall and Co., Hunslet, Leeds Wood, John, and Sons Ld., Wigan FUSE IGNITERS — ZundschnuranzUcnder — Allumages pour meches de surete Cotton Powder Co. Ld., 32, Queen Victoria-st., E.C. Curtis’s and Harvey Ld., Cannon-st. House, E.C. Davis, John, and Son Ld. (Derby) New Explosives Co.Ld., 62, London-wall, E.C. Nobel’s Explosives Co. Ld., Glasgow GAS COM PRESS0R8 — Gaskompressoren — Compres- seurs de gaz Beiliss and Morcom Ld., Birmingham GAS ENGINES—Gasmotoren—Motfm d gaz British Oxygen Co. Ld.,Elverton-st., Westminster Glover, M., and Co., Holbeck-lane, Leeds Robey and Co. Ld., Lincoln Tangyes Ld., Cornwall Works, Birmingham GAS EXHAUSTERS — Gusabsaugvorrichtungen — Machines d aspirer les gaz Coppee Co. (Gt. Britain) Ld., Kingsway, London Koppers’ Coke Oven and Bye-Product Co.,Sheffield CAS PLANT—Gasanlagen—Installations d gaz Coal Distillation Co., Middlesbrough Coppee Co. (Gt. Britain) Ld., Kingsway, W.C. Koppers’ Coke Oven & Bye-Product Co., Sheffield Kynoch Ld., Witton, Birmingham Mather and Platt Ld., Manchester Gas ■ TESTING Lamps — Grubenwetterprufer — Lampes grisoumetriques Ackroyd and Best Ld., Morley, Leeds Best’s Safety Lamps Ld., Leeds Davis, John, and Son (Derby) Ld., Derby Protector Lamp and Lighting Co, Ld., Eccles Teale, W. E., and Co. Ld., Swinton, Lancs. Wolf Safety Lamp Co., Sheffield Gas Tubes and Fittings—Gasrohren u. zubeho Tuyaux et accessoires a gaz Lewis, Edwin, and Sons, Wolverhampton Stewarts and Lloyds Ld., Birmingham & Glasgow GAS VALVES—Gasventile—Soupapes d gaz Haslam and Schontheil Ld., Bristol GAUGE CLASSES — Wasserstandsglaser —Tubes de niveau d’eau Davis, John, and Son (Derby) Ld., Derby Guilbert-Martin, 9, Edmund-pl., Aldersgate, E.C. Hopkinson, J., and Co. Ld., Huddersfield Royles Ld., Irlam, Manchester Teale, W. E., and Co. Ld., Swinton, Lancs. Theedam, E. C., Ld., Dudley Treasure, J. B., & Co., 8 & 12, Vauxhall-rd., L’pool.