31. 1792 : READING AFTER DARK William Murdock in Cornwall, England, lights his home using coal gas . 32. It was a slide valve coal gas engine. 33. The whole of the UK was converted from coal gas to natural gas in the 1970s. 34. Coal gas was initially manufactured by independent companies but many of these later became municipal services.35. The manufacture of coal also provided coal gas , which could be used for heating and lighting. 36. The city became the first major urban area to switch from manufactured coal gas to natural gas. 37. It has a capacity of 14, 000 cu . ft . and is inflated with coal gas . 38. Many mines lack fans or other forms of ventilation to disperse volatile coal gas produced while mining. 39. He died in his London flat of coal gas poisoning in 1930, probably by his own hand. 40. Coal gas supplied fuel for interior lighting.
