330 THE COLLIERY GUARDIAN. August 16, 1918. EXTRACTS FROM THE LETTERS OF A SOLID TYRE USER TO HIS SON. “If a horse gets a stone in its foot, you know pretty soon that something’s wrong because the horse goes as lame as a crow. D’you remember those great big picks fitted to the knives that boys have for birthday presents ? Just the very thing for fetching stones out of horses’ feet, weren’t they? Your tyres should get just the same treatment. They don’t show lame directly a stone gets wedged in between the twin tyres or when a sharp bit of road metal works into the rubber tread; but your tyre’s going lame just the same. The stone is interfering with the cohesion that exists between the rubber and the vulcanite, and your tyre costs are getting up and shouting. Take these stones out regularly and remember that it’s the little things that matter in all affairs mechanical.” DUNLOP RUBBER CO., LTD., Founders of the Pneumatic Tyre Industry. DUNLOP SOLID RUBBER TYRE FITTING DEPOTS: Belfast, Birmingham, Bristol, Coventry, Dublin, Glasgow, Leeds, Liverpool, London, Manchester, Newcastle - on - Tyne, Norwich, Nottingham. Dunlop solid rubber tyres are obtainable from all leading motor dealers. Are YOU employing a disabled man ? “ A wedged stone ” I TAR DISTILLATION PLANT I OR EXTENSIONS TO EXISTING PLANT FOR | ii • Hi *" ' ■ | > * “3 I ■f • M = I i I I '••• - * THE TREATMENT OF CREOSOTE AND ANTHRACENE i To Produce FUEL OIL, WASH OIL, CARBOLIC, HAPHTHALENE, LUBRICANTS. I Manufacturers : I The Chemical Engineering & Wilton’s Patent Furnace Co. Ltd. | HENDON, LONDON, N.W. 4. ............................................................................................................................|ll||||||||||||||||||||mitll|||l|i|||llF