| Description | 20th century copy of an article entitled 'Utilizing the Waste Heat of Gas-Lamps' from The Journal of Lighting, 21 Sep 1897. The article is illustrated with an image for a gas lamp with a coin slot and fountain for dispensing hot water. St Martin-in-the-Fields is mentioned as one of several authorities which had granted licences for the adapted lamp posts, based on an agreement that the Pluto Hot-Water Syndicate would pay half the gas bill for the adapted street lights. |