784 THE COLLIERY GUARDIAN. April 19, 1918. THE COTTON POWDER Co. Ld., Manufacturers of Explosives for Mining Purposes. RFY PAWIIFR IbLJb ■ VVIUrall NEW PERMITTED EXPLOSIVE ■ ■■ For all kinds of work. ' HEAD OFFICE: 24, WALBROOK, LONDON, E.C. 4. nlUIIIIIIIIIIIIIIIIIIIIIIIIIIIII|||||||||||||||||||||||||||||||||||||||||||||||||||||l||||||||||||||||||||||||llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllrH Telephone: No. 4800 (5 Lines). Telegrams: “MOTOR.” DAVY BROS. LTD., SHEFFIELD. - ^9 St Highest Class IIIm^ Lancashire Boilers FLAT OR DISHED ENDS. Any Size or Pressure. BLAKE* VERTICAL MULTITUBULAR BOILERS, THE BEST WASTE-HEAT BOILER ON THE MARKET. HIGH-SPEED Steam-Hydraulic, Forging, Bending, Shingling, Shell and Drawing PRESSES.