11. He promoted the use of coal gas to light the city. 12. The 1860s were the golden age of coal gas development. 13. Nechells gas works produced coke as a by-product from the manufacture of coal gas . 14. Around this football field-sized area there was formerly a works for producing coal gas . 15. "Cystolepiota bucknallii " has a characteristically pungent odour, reminiscent of coal gas or sulphur. 16. Common lifting gases have included hydrogen, coal gas and helium. 17. The station was illuminated from 1851 by coal gas . 18. coal gas produced in Bridgwater, as well as by the provision of an electricity supply.19. Coal Gas production ceased in 1968 and the chemical by-products plant closed eight years later.20. It has a distinctive bright yellow colour and an unusual smell likened to coal gas .
