Name of a variety of lamps for safety in coal-mines against "fire-damp," a highly explosive mixture of natural gas apt to accumulate in them; the best known being the "Davey Lamp," invented by Sir Humphrey Davy; the "Geordie," invented by George Stephenson, both of which, however, have been superseded by the Gray, Muesler, Marsant, and other lamps; all are constructed on the principle discovered by Davy and Stephenson, that a flame enveloped in wire gauze of a certain fineness does not ignite "fire-damp."
The Nuttall Encyclopædia: Being a Concise and Comprehensive Dictionary of General Knowledge[1] is a late 19th-century encyclopedia, edited by Rev. James Wood, first published in London in 1900 by Frederick Warne & Co Ltd.
WikipediaEditions were recorded for 1920, 1930, 1938 and 1956 and was still being sold in 1966. Editors included G. Elgie Christ and A. L. Hayden for 1930, Lawrence Hawkins Dawson for 1938 and C. M. Prior for 1956.[2]
Read More