high-temperature furnaces and fuel technology, including the gasification of coal. In 1927 he went back to Bristol as Honorary Professor in Applied Chemistry. Travers continued his researches in cryogenics and made the first accurate temperature measurements of liquid gases. He also helped to build several experimental liquid air plants in Europe. He died in Stroud, Gloucestershire. Publications The following is a partial list of publications: 1893. The preparation of acetylene from calcium carbide. Proc. Chem. Soc. p. 15. 1894. Metallic derivatives of acetylene. I. Mercuric acetylide. Trans. Chem. Soc. p. 264. 1895. (With W. Ramsay and J. Norman Collie) Helium, a constituent of certain minerals. Trans. Chem. Soc. p. 684. 1896–1897. Some experiments on helium. Proc. Roy. Soc. 60,449. 1898. The origin of the gases evolved on heating mineral substances, meteorites, etc. Proc. Roy. Soc. 64, 130. 1898. (With W. Ramsay) n a new constituent of atmospheric air [Krypton]. Proc. Roy. Soc. 63,405. 1901. The liquefaction of hydrogen. Phil. Mag. (6), 1,41 1. 1915. (With N. M. Gupta and R. C. Ray.) Some compounds of boron, hydrogen and oxygen. London: H. K. Lewis & Co. Ltd. 1918. On the firing of glass pots. Trans. Soc. Glass Tech. 2, 170. 1928. The complete gasification of coal for towns' gas. Trans. Soc. Chem. Ind. p. 203. 1934. On a new view of the covalent bond, and the formation of free radicals. Trans. Faraday Soc. 30, 100. 1956. The life of Sir William Ramsay. London: Arnold. References External links http://www.chem.ucl.ac.uk/resources/history/people/travers.html https://web.archive.org/web/20081023122248/http://www.cartage.org.lb/en/themes/biographies/MainBiographies/T/Travers/1.html The Experimental Study of Gases (1901) 1872 births 1961 deaths English chemists Directors of the Indian Institute of Science People educated at Blundell's School Fellows of the Royal Society 19th-century English people 19th-century British chemists 20th-century English people 20th-century British chemists Neon Krypton Xenon