March 23, 1917. THE COLLIERY GUARDIAN. 563 ' INCREASE YOUR OUTPUT. WE CAN GIVE YOU THE BEST SERVICE AT THE LOWEST COST. NO LEAKAGE OF ACID. BRITISH PRODUCTIONS ENTIRELY. ACCUMULATORS for all purposes. Telegrams— PELECTLYTO, BOCHURCH, LONDON.” Telephone— 119 STRATFORD. Firemen’s Emergency Pocket Lamp. Size 5? in. by 4 in. Miners’ Electric Lamp. Weight 41 lb. Pearson’s Electric Miners’ Lamp C° L? Victoria Works, Marshgate Lane, Stratford, LONDON, E. WINDING & HAULING ENGINES up to the largest sizes. STEAM and ELECTRICALLY DRIVEN. Worsley Mesnes Ironworks Ld., WIGAN. AIR-COMPRESSING ENGINES AND PUMPS. BREAKDOWN REPAIRS A SPECIALITY. Telegrams—“ENGINES, WIGAN.” Telephone—No 46 WIGAN. Paper or Bitumen CABLES. Shot Firing Cables. All Guaranteed of BRITISH MANUFACTURE. COMPETITIVE PRICES for the HIGHEST QUALITY and QUICK DELIVERY. HIGGIN Ltd., DEiNSGAiE, Manchester. Clarke, Chapman & Co. Ld., GATE SHEAD. Wires— Telephones— “Cyclops, Gateshead.” 1070, 1073 Central; 137 City. 2196 Central, Trunk Line. WATER TUBE BOILERS (“ Woodeson ” Patents), Suitable for the highest pressures. AU tubes straight, of equal length, and nearly vertical. Catalogue and Prices on application. HAMMERED CAST IRON PISTON RINGS (by the Davy-Robertson Process). All sizes from 24 in. to 72 in. In our Special Piston Ring Iron. THE STANDARD PISTON RING & ENGINEERING CO. LTD., Premier Works, Don Road, SHEFFIELD QUICK DELIVERY. LOW PRICES. Te&T Telephone No.—1006 Avenue. Telegrams — “ Kernamat, London.” H. E. HAY, Peninsular House, 28, MONUMENT ST., LONDON, E.C. Sole Agent for— KERN & CO., AARAU, SWITZERLAND. Established 1819. Contractors to the Indian Office. FIRST PRIZE—GOLD MEDAL. GRAND PRIX. Allahabad (1911) U.P. Exhibition. Paris, 1899. Milan, 1906. TURIN (1911)—2 GRANDS PRIX. 20 Medals and Highest Awards. Makers of High-class - - Swiss Drawing and . , Surveying Instruments, THE FINEST INSTRUMENTS IN THE WORLD. HIGHEST PRECISION. LATEST IMPROVEMENTS. CATALOGUES SENT FREE. STOCK JOHN THOMPSON Dish End Boilers -. 30ft. by 9ft. 3in., 1501b. „ ______ 30ft. by 8ft. 6in., 1201b. „ „ ... 30ft. by 8ft. 3in., 1501b. ‘Russell’Steel DOGSPIKES For HIGH CLASS QUALITY and PRACTICAL UTILITY are UNSURPASSED. In use throughout the world. Large Stocks of all sizes held. JOHN G. RUSSELL, Clydesdale Spike 'Wom»1«s, WISMAW. SCOTLAND. “CROWN” COVERINGS for Boilers, Piping, Superheaters, &c. 96 SAVING in Radiation, Greatest Economy, Longest Service. ’ J ■ o* ■ . Y'. : , it;: ■z- W1- _ rr-,-T— Cannot be impaired, however intense the heat. Our TELLURIC CEMENT, unequalled for general purposes. Sole Makers: SUTCLIFFE BROS., Union Works, GODLEY, nr. Manchester.