October 29, 1915. THE COLLIERY GUARDIAN 909 Telegrams : “ Future, Middlesbrough.” COAL DISTILLATION COMPANY, Middlesbrough. BY-PRODUCT COKE OVENS, WITH AND WITHOUT REGENERATORS. HUSSENER & COLUM SYSTEM. DIRECT RECOVERY SYSTEM. Largest Yield of By-Products. No Re-heating of Gases. BENZOL PLANTS. TAR DISTILLATION PLANTS. Large number of; Plants in operation in Great Britain and on Continent. DQ DQ 3 § I t £ £ o a & £ © o ® fl CC — 3 h CS .s ® 3? ’S o Pd g