March 30, 1917. THE COLLIERY GUARDIAN. 617 COMPARE Working Parts of JEFFREY COAL CUTTERS With other Well-known Machines. -on Cl.uhc4, LONDON : 65, Fenchurch Street, E.C. CARDIFF : 102, St. Mary Street. MANCHESTER : The Hive Works, Trafford Park. HUGH WOOD & CO. LTD., Newcastle-on-Tyne. Manufacturers of THE NEW EXPLOSIVES COMPANY Ld ESTABLISHED 1865. Every description of High Explosives for Mining and Blasting Purposes. ST0M0NAL No. 1 Particulars and Prices on application to the Company or any of their Agents. Works: Stowmarket, Suffolk. The Ideal “Permitted” Explosive for Coal Mines. Head Office: 62, London Wall, London, E.C.