June 9, 1916. 1118 THE COLLIERY GUARDIAN _____________________ Purchasers' Guide to Advertisers’ Specialities—(continued). Sulphur Recovery Plant—Appareiis d recv.pira- tton du souffre Coke Oven Construction Co. Ld., Sheffield Copp6e Co. (Gt. Britain) Ld., Kingsway, W.C. Daglish, Robt., and Co. Ld., St. Helens, Lancs. Koppers’ Coke Oven & Bye-Product Co., Sheffield Superheaters—Surchauffeurs Clarke, Chapman and Co. Ld., Gateshead-on-Tyne Pulsometer Engineering Co. Ld.. Beading Surplus Steam Valves (Full Bore)—Soupapes auvapeur en trap plein Auld, D., and Sons, White vale Foundry, Glasgow Baldwin, James, and Co., Keighley, Yorks Hopkinson, J., and Co. Ld., Huddersfield Boyles Ld., Irlam, Manchester SURVEYING (Books ON)—Manuel d’arpentage Thomas, Wm., Cambrian Mining School, Forth Surveying ( Instruction ) — Enseignement (arpentage) Thomas, Wm., Cambrian Mining School Forth Surveying Instrument Makers — Appareiis d’arpentage Davis, John, and Son (Derby) Ld., Derby Harling, W. H., 47, Finsbury Pavement, London Stanley, W. F., & Co. Ld., 286, High Holborn, W.C. Thornton, A. G., Ld., King-st. West, Manchester SWITCH Boards—Tableaux de distribution Davis, John, and Son (Derby) Ld., Derby Haslam and Stretton Ld., Cardiff Holmes, J. H., and Co., Newcastle-on-Tyne SWITCH Gear—Commutateurs tilectriques Anderson, Boyes & Co. Ld., Motherwell, Scotland British Insulated and Helsby Cables Ld., Prescot Davis, John, and Son (Derby) Ld., Derby Haslam and Stretton Ld., Cardiff Holmes, J. H.» and Co., Newcastle-on-Tyne Swivels (Ball-Bearing)—Umeriiions a bui.es Youngs, Ryland-street Works, Birmingham TANKS Bagnall, W. G., Ld., Stafford Daglish, Robert, and Co. Ld., St. Helens, Lancs. Goodall, Clayton and Co. Ld., Hunslet, Leeds Harvey, G. A., & Co. (Lndn.) Ld.,Woolwich-rd.,S.E. Head, Wrightson and Co. Ld., Stockton-on-Tees Isca Foundry Co. Ld., Newport, Mon. Mather and Platt Ld., Manchester Theedam, E. C., Ld., Dudley Ward, Thos. W., Ld., Albion Works, Sheffield Wright’s Forge and Engineering Co. Ld., Tip ton Wood, John, and Sons Ld., Wigan Tachographs and Tachometers-Tacheometres Davis, John, and Son (Derby) Ld., Derby Tar Distilling Plant—installations d distiller ie goudron Coal Distillation Co., Middlesbrough Coke Oven Construction Co. Ld., Sheffield Copp6e Co. (Gt. Britain) Ld., Kingsway, London Daglish, Robt., and Co. Ld., St. Helens, Lancs. Koppers’ Coke Oven & Bye-Product Jo., Sheffield Simon-Carves Ld., 20, Mount-street, Manchester TECHNICAL Education— Enseignement technologique Southern, T. A., Universal Mining School, Cardiff Thomas, Wm., Cambrian Mining School, Forth Telephones -iWph d’eau Bussell, John, and Co. Ld., Alma Works. Walsall Scottish Tube Co.Ld., 34, Robertson-st., Glasgow Spencer, John, Ld., Tube Works, Wednesbury Stewarts and Lloyds Ld., Birmingham & Glasgow Weighing Machinery—Appareiis depesage Spencer. James, and Co. Ld., Hollinwood. Man- chester Thompson and Co., Wigan Wheelbarrows—Brouettes Allen, W. G., and Sons (Tipton) Ld., Tipton Baker, John, and Son, Thompson-st., Bilston . Bayliss, Jones & Bayliss Ld., Wolverhampton Hardy Patent Pick Co., Sheffield Harvey, G. A., & Co., Woolwich-rd., London, S.E, Haslam and Stretton Ld., Cardiff Lewis, Wm., and Son, Bilston, Staffs Theedam, E.C., Ld., Dudley Wheels, Axles and Tyres—Essieux et bandages Bayliss, Jones & Bayliss Ld., Wolverhampton Chorley Bail way Wagon Co. Ld., Chorley Du Croo & Brauns, 53, Victoria st., London, S.W, Hadfields Ld., Hecla Works, Sheffield Hardy Patent Pick Co. Ld., Sheffield Lancashire & Yorkshire Wagon Co. Ld., Heywood Lancaster and Tonge Ld., Pendleton, Manchester Moy, Thomas, Ld., Rail way Works, Peterborough Benton, B. M., and Co., Midland Works, Sheffield Thompson and Southwick Ld. Tam worth Wigan Wagon Co. Ld., Springs Branch, Wigan Wood, John, & Sons Ld., Brook Foundry, Wigan Winches—Treuiis Clarke, Chapman and Co. Ld., Gateshead-on-Tyno Hardy Patent Pick Co. Ld., Sheffield Mining Appliances Co., 32, Church-st., Sheffield Tangyes La., Cornwall Works, Birmingham Young’s, By land-street Works, Birmingham Winding Engine Indicators — indicateurs do profondeus pour les machines d’extraction Daglish, R., and Co., St. Helens, Lancashire Davis, John, and Son (Derby) Ld., Derby Wood, John, and Sons Ld., Wigan Wire—fu British Insulated and Helsby Cables Ld., Prescet Cooke, Wm., and Co. Ld., Tinsley, Sheffield Elliot, George, & Co. Ld., Westminster, S.W. Glover, Wm. Jas., and Co., St. Helens, Lancs. Latch and Batchelor Ld., Hay Mills, Birmingham Renton, B. M., and Co., Sheffield Wire Drawing Plates and Wortles—Fiiieres Hodgson, E. W., & Co., 24, Norfolk-row, Sheffield WIRE Mesh AND Gauze—Tissue mftalliques Ackroyd and Best Ld., Morley, near Leeds Barns, W., and Son, Holloway, London, N. Cousland, Alex., and Son, 3, Mitchell-st., Glasgow Davis, John, and Son (Derby) Ld., Derby Harvey, G. A.,&Co. (Lndn) Ld., Woolwich-rd., S.E, Protector Lamp ana Lighting Co. Ld., Eccles Staniar, John, & Co., Manchester Teale, W. E., and Co. Ld., Swinton, Lancs. Theedam, E. C., Ld., Dudley Wolf Safety Lamp Co., Sheffield Wire Rope, Greaser—Appareiis de graissage pour cdbles metalliqucs Mining Engineerinp- Co T.d. Sheffield Theedam, E. C., Ld., Dudley Wire Rope Pulley Blocks—Paians pour cables en acier Hardy Patent Pick Co. Ld., Sheffield Tangyes Ld., Cornwall Works, Birmingham Youngs, Ryland-street Works, Birmingham Wire Work—Treiiiis Barns, W., and Son, Globe Works, Holloway, N Cousland, Alex., and Son, 3, Mitchell-st., Glasgow Harvey, G. A.,&Co. (Lndn) Ld., Woolwich-rd.,S.E, Stanier John, ard Co., Manchester PERFORATED PLATES FOR COAL SEPARATING PROCESS. THOMAS HUDSON LTD., Sheepford Iron Works, COATBRIDGE. SMALLMAN patent HAULAGE CLIPS. New Models Nine Sizes. Patented 1902, 1906 and 1910. Automatic Detac I.me nt. The 1911 lever has large lateral stops and a wedge-shaped head. Drop-forged shells (two sizes), levers (four sizes), catches and couplings. “THE SOUTH WALES COAL-FIELD.”—PART III. By HEN RY K. JORDAN F.OS (Past President ard First Gold Medallist of the South Wales Institute of Enffineers . rpHIS Paper completes the author’s monograph on the South Wales x Coal-Field, and is published by the South Wales Institute of Enginers. It comprises 89 pages of printed matter, with a number of Sections inter- leaved, and the following large drawings which are issued separately:— 1. A Horizontal Section across the Carmarthenshire Coal-Field, from Pontyberem to the Sea near Llanelly. I he Section is tiv i feet in length mounted on linen, and geob -gicaliy colour* d. 2 A Map on the Six-inch Scale of the Anthracite Area of Lian- non, Mynydd-Sylen, and Pontyberem. It also illustrates the < >utcr< ps <>f the R.-i»ms, F ults, &c. Three Sheets of Vertical Sections of the Deep and Important New Collieries that have been Sunk throughout the Coal- Field during the Past Six Years. The sections are drawn to a Reale of 100 ft. to 1 in., and the sheets are 40x27 in., mounted on linen. The first portion of the text deals with the anthracite area and with the Pennant seams to the north and west of Llanelly and Burry Port. The remaining portion discusses the new collieries in Glamorganshire and Monmouthshire, with much additional information which brings the subject up to date. A limited number of the above are for sa'e, price £ 2 2s. (postage extra), and may be obtained from THE SECRETARY, The South Wales Institute of Engineers, Cardiff. “The South Wales Coal-Field.” Part I., by Mr. H. K. Jordan, price £2 2s., dealing with rhe east,Ain ha f of tne Coal-Field; and "The Scuth Wales Coal-Field ” Part II., by Mr. H. K. Jordan, price £1 Is., dealing w.th the western half of the Coal-Field, may be obtained from the Secretary. $■ Illustrated Catalogue. Clips can be had without catches. Patentee and Sole Manufacturer:— JAMES W. SMALLMAN, Nuneaton, England. _________________________________________________________ MAPS of the BRITISH COALFIELDS. Showing the Position of Collieries with regard to Railway Communications, Canals and Shipping Ports. Scale 3 miles to an inch. (1) Scotland. (2) North of England (3) South Wales. (4) North Midlands. (5) South Midlands. In sheet ___________________________ 4s. each. Mounted on Cloth, Rollers and Varnished ... 6s. „ Mounted on Cloth, and in Titled Cloth Case .. 6s. „ _______________________________ THOMPSON & CO., -------- WIGAN, ----- Iron Merchants, Metal and Mineral Agents. RAILS OF EVERY DESCRIPTION, WITH FITTINGS COMPLETE, FOR COLLIERIES, CONTRACTORS, &c. SOLE AGENTS IN THE DISTRICT FOR THE SALE OF Wigan Coal & Iron Co.’s Siemens Steel Billets, Blooms, Rars, Angles, Rails, &c. SPECIALITY: STEEL FOR WAGON K. H. FORGE, FOUNDRY & RASIC PIG IRON. Also Spiegeleisen, Ferro-Manganese & Silico Spiegel. Nobel’s (Gelignite, Polarite, Dynobel, Ajax Powder, Monobel No. 1, Cambrite, Victor Powder and Explosives \ Co. Ltd. (.Al Monobel; also Detonators, Electric Detonator Fuses, and all Blasting Appliances. Ha^gie Brothers Ld. Wire & Hemp Ropes. POOLEY’S PATENT WEIGHING MACHINES. Telegraphic Address—“SPIEGEL, WIGAN.” __________________________ OXYGEN. The BRITISH OXYGEN Co. Ld. The oldest and most extensive Oxygen producing: and distributing business in the World. Published jointly by THE COLLIERY GUARDIAN CO. LTD., and Messrs. W. & A. K. JOHNSTON, 30 & 31, Furnival Street, London, E.C. Factories in all industrial Centres equipped with modern plants producing Oxygen of unrivalled quality for use with RESCUE APPARATUS. ADDRESSES OF LONDON ______ BIRMINGHAM WOLVERHAMPTON CARDIFF ______ MANCHESTER___ BIRKENHEAD___ SHEFFIELD ___ NEWCASTLE-ON- TYNE ______ GLASGOW______ SYDNEY_______ THE COMPANY’S WORKS: Elvbbton St., W estminstek, S.W. Tunnel Avenue, East Greenwich Saltley Works. FS.E. Lower Walsall Street. East Moors. Great Marlborough Street. Brom borough Port. Celtic Works, Savile Street. Walker Gate. Rosehill Works, Polmadie. N.S.W.