August 25, 1916. THE COLLIERY GUARDIAN. 343 JEFFREY COAL CUTTERS Have again and again throughout the country proved themselves to be the best. There are three good reasons why you should try a Jeffrey Coal Cutter. FIRSTLY.—We supply you with a machine on a thirty days FREE working trial. SECONDLY.—We pay carriage both ways if unsatisfactory. THIRDL Y.—We make no charge for training men to run our machine during trial. HUGH WOOD & Co. LD Newcastle-on-Tyne. GOSFORTH FOUNDRY Co. Ltd., Malleable Ironfouiiders, DRONFIELD, near SHEFFIELD. Hakers of all kinds of Driving and Elevator Chains, Sprocket Wheels, Elevator Buckets, &c. Walter Scon Ltd. Leeds, LEEDS STEEL WORKS, England. MANUFACTURERS OF BRITISH STANDARD ROLLED STEEL JOISTS, CHANNELS, TRAMRAILS AND PERMANENT WAY RAILS, &0. Example of 10 in. x 6 In. - 421b. R.S. Joists curved for Framework to Roadway. Pit Head Frame. . Erected In Work. JK lor Inspection. ROLLED STEEL JOISTS for PIT PROPS, FRAMEWORK TO ROADWAYS. Ac. STRUCTURAL STEELWORK FOR BUILDINGS, Ac. Mild Steel Blooms, Billets, Slabs, Tinbars, Rounds & Flats. Rolls cut for Special Sections and to approved quantities. Books of Sections and other information on application.