998 THE COLLIERY GUARDIAN. November 24, 1916. JAMES SIMPSON & CO. L™ announce that, owing to the WAR OFFICE having requisitioned their Offices at INDIA HOUSE, KINGSWAY, W.C,, their Registered Office Address till further notice will be QUEEN’S HOUSE, KINGSWAY, W.C. There will be no alteration in the Telephone Numbers and Telegraphic Address. STEAM, MOTOR, BELT, OR ROPE=DRIVEN AIR & GAS COMPRESSORS From 50 to 15,000 cubic feet FOR COLLIERIES, MINES, Etc. s’ Its STEAM-DRIVEN AIR COMPRESSOR. ADVANTAGES SIMPLICITY. RELIABILITY. DURABILITY. HIGH EFFICIENCY. SELF-LUBRICATION. BEST WORKMANSHIP. SMALL FLOOR SPACE. MINIMUM MAINTENANCE I?' -30 ; \ CIS ■ ”'“V s’'' / MOTOR-DRIVEN AIR COMPRESSOR. BELLISS Telegrams : “BELLISS, BIRMINGHAM.” & MORCOM LIMITED, BIRMINGHAM. London Office : 8, VICTORIA STREET, S.W.