154 THE COLLIERY GUARDIAN. January 18, 1918. JOHN WOOD & SONS, LT° Engineers, BARLEY BROOK FOUNDRY, WIGAN. Fitted with AUTOMATIC BRAKE FRICTION CLUTCH. Telephone—No. “55” Wigan Telegrams—“ Haulage. Wigan BAND” and Improved “ OUTSIDE 1OO-H.P. “ENDLESS” I • •. ' 38 '.X******''.*4 I Haulage Gears of every type. PUMPING £ AIR COMPRESSING ENGINES. NEWTON, CHAMBERS " & Co. Ltd., THORNCLIFFE IRONWORKS, near SHEFFIELD. ESTABLISHED 1793. TANKS in Cast Iron or Steel. GENERAL CASTINGS, CONSTRUCTION AL STEELWORK. CONTRACTORS to the ADMIRALTY, WAR OFFICE, and CROWN AGENTS lor the COLONIES. Telegrams—“ NEWTON, SHEFFIELD.” Telephone No. 2200 Two Lines. .... J.B. TREH5URE LIVERPOOL GAUGE GLASS WANERS LUBRICflTORSnc Lf5T5 oa PPPl/ffl/OP MBS Established 1800. — Telephone No. 577 BRASS TIME CHECKS JOHN LAWSOW & SONS, Manufacturers of every kind of STEEL STAMPS, LETTERS. F8GIBRES, BRANDS, STENCIL PLATES, &c. Roebuck Letter Works, 26, Carver Lane, SHEFFIELD. The QUARRY. Annual Subscription, 7 s. 6d. post free (payable in advance). Offices—30 & 31, Furnival Street, Holborn, London, E.C.4 of the Coaiflelda. Awjql j Scotland. North of England. 3. South Wales. 4. North Midlands. 5. South Midlands. Sheet, 4s. each: Mounted on Oloth on Rollers, or in Case. 6s. each .—THE COLLIERY GUARDIAN 00. LTD- 30 ft 31 Furnival-street. Holborn. London. E.C. 4 >••••• • PERFORATES PLATES FOR COAL SEPARATING PROCESS. • •• THOMAS HUDSON LTD., Sheepford Iron Works, COATBRIDGE. “THE SOUTH WALES COAL-FIELD.”—PART III. By HENRY K. JORDAN. F.G S. (Past President and First Gold Medallist of the South Wales Institute of Engineers . rpHIS Paper completes the author’s monograph on the South Wales 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. The Section is fiv-^ feet in length, mounted on linen, and geologically coloured. 2. A Map on the Six-inch Scale of the Anthracite Area of I>lan- non, Mynydd-Sylen, and Fontyberem. It also illustrates the Outcrops of the Seams, Faults, &e. 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 Mections are drawn to a scale 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 sale, price £2 2 s. (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 the eastern half of the Coal Field; and “The South Wales Coal-Field ” Part II., by Mr. H. K. Jordan, price £1 Is., dealing with the western half of the Coal-Field, may be obtained from the Secretary. 10%to15% MORE STEAM OR %yo8% SAVING r«FUEL LANCASHIRE BOILER fitted with SIMPLET CIRCULATOR. For further particulars of the above, apply THE LONDON SIMPLET ENGINEERING CO. LTD., ------------20, CULLUM STREET, ----------- FENCHURCH STREET, LONDON, E.C. 3 LINES WATER, STEAM, OIL, AIR, GAS, HYDRAULIC. CONTRACTS COMPLETED THROUGHOUT UNITED KINGDOM. J. W. HOUSTON & GO,, partick cross, GLASGOW.