May 19, 1916. THE COLLIERY GUARDIAN. 973 Wrought SPECIAL JOINT. These Tubes are specially suitable for mines, being both light and strong The Joint, as illustrated, can be easily connected, and a tube can be removed without disturbing the run. Fittings of all kinds supplied. Improved Albion Loose Flange Joint, STEWARTS and LLOYDS LTD., Iron and Steel Tubes. PIT PROPS. We manufacture Tubular Steel Pit Props, which are exceptionally strong and durable. They can be used repeatedly and have a high factor of safety. Lists sent on application. GLASGOW-41, Oswald Street. BIRMINGHAM—Broad Street Chambers. LONDON—Winchester House, Old Broad Street. MARKS. STOPS. BRANDING IRONS. Sets of Letters f/fure PMefes, PmLoss/tt^ Presses. ttxass/temeP/ates, ttfemtt/s, Moi/fofers’Lettsrsif/^i/rss. pies. E.PRYOR & SON, Seals. QUALITY in SWITCH GEAR. TELEP: 2970 (TWO L/NES) TELEG: THOP” ELECTRIC PLANT^ACCESSORIES CABLES & SWITCHES, CARBON &- METAL LAMPS HASLAM & STRETTON,U,D 11,WINDSOR PLACE, CARDIFF. . . LIQUID SWITCH GEAR of HIGH- CLASS MAKE and GOOD DESIGN. WRITE for LIST No. 60 with PRICES and OUTPUTS J. H. HOLMES & GO., Newcastle-on-Tyne. No. 48. Haulage Rope. J. <3 E. WRIGHT (Established 1770) LTD-, Universe Wire Rope Works, BIRMINGHAM. Highest Quality No. 49. Winding Rope. STEEL WIRE ROPES No. 59. Winding Rope In FLATTENED STRAND LOCKED COIL and OTHER SPECIAL CONSTRUCTIONS FOR MINING AND ENGINEERING PURPOSES. Telegrams—‘ * Uinverse, Birmingham. ’ ’ Telephones—Birmingham 6914 Central (3 lines). No. 64. Guide Rope. “THE SOUTH WALES COAL-FIELD.”—PART ill. 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 tiv-j feet in length, mounted on linen, and geologically coloured. 2. A Map on the Six-inch Scale of the Anthracite Area of Llan- non, Mynydd-Sylen, and Pontyberem. It also illustrates the Outcrops of the Seams, Faults, £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 scale of 100 ft. to 1 in., and tne 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 arefor 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 the eastern ha f of tne 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. John Russell & Co. Ltd Alma Tube Works, WALSALL. ^DE (TUBES AND FITTINGS) For Gas, Steam, Water, &c. WELDLESS STEEL TUBES for ENGINEERS, 4c. ‘Russell’Steel DOGSPIKES fFor HIGH CLASS QUALITY and PRACTICAL UTILITY are UNSURPASSED. pT In use throughout the world. Large Stocks of all sizes held. JOHN G. RUSSELL, Clydesdale Spike W’ox.ks, { WISMA1W, SCOTLAND. 5/ PECKETT & SONS Ltd., Speciality—TANK LOCOMOTIVES. RISTOL. IflUGE T J.B. TREASURE ErC9, VflUXHflLL R° .LIVERPOOL^ GAUGE GLASS WASHERS LUBRICAT0R5nc r l/sts or PPPL/c/rr/or LH55E5 Locos, of various sizes specially designed for Collieries, Ironworks, Contractors, 4c. always in progress for Early Delivery. Photographs, Prices and Specifi- cations ON APPLICATION. Telegraphic Address—*’ Peckett, Bristol.” Telephone—No. 6 Fishponds. ESTABLISHED 1864. 1015