February 9, 1917. THE COLLIERY GUARDIAN. 269 . o * ’ ♦ ~ SULLIVAN IRONCLAD COAL CUTTERS represent the latest and most approved practice in modern coal-cutting machines. They are the only machines with the chain haulage and friction clutch—the two most important improvements in coal cutters during recent years. Send for Catalogue 3073 A. “ASK THE MAN WHO HAS ONE.” SULLIVAN MACHINERY CO., (Established 1850.) Salisbury House, London, E.C. DISTRICT AGENTS : SWINBURNE & HARDIE. Milburn House, Newcastle-on-Tyne. F. J. LYONS-DAVIS, 23, Victoria Avenue, Cardiff. JOHN WOOD & ROBERT LAVERICK. 2, Claremont Gardens, Nottingham. ARCHIBALD BAIRD & SON LTD., Hamilton, Scotland. SONS LTD., Wigan. ' ROPE DRIVING. Illustrated Lecture on— ‘ THE TRANSMISSION OF POWER BY ROPES.” Post Free on Application. DIPLOMAS OF HONOUR BRUSSELS and TURIN. « | Km* Telegrams: “ Kenyon, Dukinfield.” Telephone: 494 Ashton. LONDON OFFICE : 95 & 97, Finsbury Pavement, E.C. FOR EFFICIENCY DURABILITY USE Wm. KENYON & SONS Ltd., CHAPEL FIELD WORKS, DUKINFIELD, near MANCHESTER. SPECIALISTS IN GEORGE FLETCHER&CO. LTD. DERBY COLLIERY, MINING & GEMENT WORKS PLANT. UNDER GOVERNMENT CONTROL. TIPPLERS OF ALL SIZES To Handle MINE TUBS or RAILWAY WAGONS. To Colliery proprietors. Shafts sunk, tunnels driven, & other mining constructions carried out in difficult and very wet ground by the best method. Success guar- anteed. 18 shafts completed in England, and 7 in progress. Ferro-Concrete Lining a speciality. Feeders of water in shafts or levels effec- tually treated. ALBERT FRANCOIS, White House Chambers, DONCASTER. Telegrams—“Francois, Doncaster.” Telephone—408 Doncaster. YEARS of STUDY and EXPERIENCE HAVE BROUGHT MY SYSTEM OF CEMENTATION TO PERFECTION. G.F &CO LTD 562. .. . , ; Tub Tipplers under Erection, London Office : 21, Mincing Lane, T* Cj 1 C^phone : 817 (2 lines). 1 EL/Cgrams: “Amarllla, Derby.’ ’Phone: 2813 Avenue. ’Grams: “Amarllla, Fen, London.”