March 17, 1916. THE COLLIERY GUARDIAN. 495 Write to-day for catalogues free on request. “ Bennis ” Machine Stokers, Automatic Coal Elevators and Conveyors are—and always have been—British made by British labour in Bolton, Lancashire. They are to-day serving the needs of the Empire at top- notch efficiency, saving coal, saving labour, and saving time in handling, and increasing the output of Munition Works, controlled Establishments, Collieries, and^in every kind of industry throughout the world. ED. BENNIS AND CO. LTD., LITTLE HULTON, BOLTON, & 28, VICTORIA ST., S.W. EDWIN LEWIS & SONS. Original Makers of “Acme” & “Williams” Loose Flanged Joints for Mining Work. TUBES OF ANY SIZE For Compressed Air, Water, or Steam. f Patent Iron Tube Works, Monmore Green. I Britannia Tube Works, Ettingshall. WOLVERHAMPTON. Buyers will note that the joint illustrated is an improvement on the “ Williams ” joint, as it does without the internal ferrule. Telegrams—** Lewis, Wolverhampton.” Telephone—Nos. 15 6 180 Wolverhampton. _________________ LONDON ADDRESS—143, Cannon Street, E.C. LIVERPOOL WAREHOUSE-58, South John St, Morley, nr. Leeds More Light means Cleaner Coal, Less Roof Accidents, and Freedom^ from Nystagmus. . . . = HAILWOOD’S = Combustion Tube Lamp is cheaper, more reliable, and has greater candle power than electric lamps. Ji S' 4-— li Caiwoods • .1 Wfs $ 1