‘The Blesed Effects of Gas Lights or a new method of Lighting as practised in Great Peter Street, London.’ Hand-coloured engraving published by S W Fores (50 Piccadilly, London) 10 November 1813. A humorous illustration of a group of men, a chair, floorboards and a dog being thrown upwards by an explosion from a gas pipe. Three men surround the blast exclaiming that gas smells, is poisonous and will kill many