June 12, 1914. THE COLLIERY GUARDIAN. 1331 iwnniiiwwwwr; Biggest pendulum swing 296 No Thawing Required Fumes Trivial * No Insensitiveness Defect on New Permitted List of Explosives 18 OUNCES VICTOR POWDER CORRUGATED and FLAT SHEETS and GALVANISED GOODS; TUB & CORNER PLATES; AIR PIPES and all Colliery Requirements. J. SUMMERHILL & CO., Beaver Works, WOLVERHAMPTON. PUMPS for all duties. T. SHORE and SONS, Hydraulic Engineers, STOKE-ON-TRENT Write for Illus- J trated $ Price , List. Specialities: LATHES & SAW BENCHES. First class at competitive prices. ROWLAND C. FOOT & Co. 11, Queen Victoria St., London, E.C GEORGE BURNSIDE, Burnside’s Safety Boring Apparatus. Used most successfully in tapping old Mine Workings. Apply for Catalogue. Boring Tool Works, Shiney Row, Fencehouses, Also Eye Guards for Pit Ponies. CO. DURHAM. MANCHESTER EXH BITION, JUNE I2TH TO 27TH, STAND NO 56. FIRE ENGINE MAKERS. to H.M. The Kin;, By Appoint- ment MERRYWEATHERS’ Largest Makers of High-class HOSE PIPES in the World. Dub-Sub Canvas for Fire Duty* Admiralty Leather for Flushing. Armoured Rubber for Mines. Write for “ Hints on Hose,” and quotations. MERRYWEATHER & SONS, Fire Engine and Hose Works, GREENWICH, LONDON, S.E. AND This Valve BECAUSE IT’S THE BEAT-ALL-RENEWABLE Parallel Slide Blow-off. Special Metal Valve and Seat. Rmtiwble V.lvrs, G.LU