926 THE COLLIERY GUARDIAN. November 10, 1916. M. COULSON & CO. LTD., SPENNYMOOR, Makers of Coal Washers, Screening Plant, . . Conveying, Elevating, and Crushing Machinery, Tipplers, Tub Controllers, . , Storage and Drainage Bunkers. . . - S-F- -.'i ____________________________ ^2 ij" • -IBe. Replace parts and Repairs given Special Attention. Estimates and Full Particulars on Application. SPECIAL Self-contained MACHINE for CORRECT GRINDING of STONE-DUST For FIERY WORKINGS. BRICKMAKING MACHINERY Suitable for COLLIERY SHALES. Richard Scholefield, I®* Leeds. 'Phone 1513. ENQUIRIES SOLICITED. Wire “Brick, Leeds.” CEMENTATION for WET VIRGIN'GROUND YEARS of STUDY and EXPERIENCE HAVE BROUGHT MY SYSTEM OF CEMENTATION TO PERFECTION. TO COLLIERY PROPRIETORS. Shafts sunk, tunnels driven, and other mining constructions carried out in difficult and very wet ground by the best method. Success guar- anteed. 18 shafts completed in England, and 7 in progress. Ferro-Concrete Lining a speciality. Feeders of water in shafts or levels effectually treated. Al DE*DT EDANOniC White House Chambers ALUtn I rnAlluUlo, doncaster. Telegrams—“ Francois, Doncaster,” Telephone—408 Doncaster. Any Section . MANOR WORKS L_, SHEFFIELD A—--H Teleynzfrts STEADFAST SHEFFIELD 2e^e»A«»eCENTRAL3112 Biiiiiiiiiiiiiiimiiih Price 2s. “Useful alike to the Student and Practical Man.” /Colliery Manager’s Catechism, containing Practical and Scientific Information for the use of Students. By W. FAIRLEY, F.G.S. The author conveys his information by means of more than 670 questions and answers, under the following chapter headings The Coal Minos Regulation Act, 1887 — Geology—Ventilation—Gases— Varieties of Coal and other Fuel—Steam, Boilers and Engines—Practical Mining—Mathematics—Land and Mine Surveying — Applied Mechanics- Statistics—Electricity—Miscellaneous Subjects —Appendix (Text of the Mines Regulation Act, 1887). THE COLLIERY GUARDIAN CO. LTD., 30 & 31. Furnival-street, Holborn, London, E.C. NEWTON, CHAMBERS * & Co. Ltd., THORNCLIFFE IRONWORKS, near SHEFFIELD. ESTABLISHED 1793. TANKS in Cast Iron or Steel. GENERAL CASTINGS, CONSTRUCTIONAL STEELWORK. CONTRACTORS to the ADMIRALTY, WAR OFFICE, and CROWN AGENTS for the COLONIES. Telegrams—“NEWTON, SHEFFIELD.” Telephone No. 2200 Two Lines. “THE SOUTH WALES COAL-FIELD.”—PART III. By HENRY K. JORDAN. F.G S (Past President and First Gold Medallist of the South W^les Institute of Engineers1. THIS 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. : he Section is five feet in le -uth. mounted n tien. -.nd 4eof gic 1 y co'our* d. 2. A Map on the Six-inch Scale of the Anthracite Area of Lian- non, Mynydd-Sylen, and Pontyberem. It also illustrates the Outer ps t th» grams F luts, &•-. Three Sheets of Vertical Sections of the Deep and Important New Collieries that have been ■ unk throughout the Coal- Field during the Past Six Years. Th ections .redrawn to a son. • of JOO ft t' 1 n . snd r.ne sheets are 40x27 m mount 'd on linen. The first portion of the text deals with the anthracite area and with the Pennant seams to the north and west of Llanel ly 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., > Mr. H. K Jordan, price £2 2s., dealing with he eastha f of me Coal Field; and "The S uth 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. PRINCEPS F»ATEMT “DEFLECTOR” OIL SEPARATOR. I Capacity, 300,000 lbs. of steam per hour, 60" diameter main. ONE OF THE LARGEST EXTRACTORS MADE IN THIS COUNTRY. PRINCEPS & CO., Engineers, SHEFFIELD. 15.200 Established 1800. — BRASS TIME EEECKS JOHN LAWSON 3 SONS, Manufacturers of every kind of STEEL STAMPS, LETTERS, FIGURES, BRANDS, STENCIL PLATES, &c. Telephone No. 577 Roebuck Letter Works, 26, Carver Lane, SHEFFIELD. Save Money - Save Coal - Save Steam By adopting FORREST’S PATENT AUTOMATIC Cylinder DRAIN COCKS on your Compound, Winding, Hauling, and all your Stationary Engines, Steam Winches, &c. (Thousands in use), now fixed on most new Engines turned out by leading Engineers. The Safest Automati Drain Cock ever fixed on Com- pound Condensing Engines, most positive in action. Makers of High-class Gunmetal Gland Taps. Wheel Valves, Ac, ■ Class B For Prices, Particulars and Testimonials, apply Sole Makers, APPLETON & HOWARD, Bra1!Xdeerrrnd ST. HELENS, LANCS. Contractors to the War Office.