SIMKIN, Tom. American, b. 1933. Genres: Earth sciences, Natural history, Environmental sciences/Ecology, Geography, Sciences, Reference. Career: U.S. Coast and Geodetic Survey, Seattle, WA, ensign, 1956-58; State University of New York at Binghamton, instructor, 1964-65; University of Chicago, Chicago, IL, research associate, 1965-67; Smithsonian Institution, National Museum of Natural History, Washington, DC, curator of petrology and volcanology, 1967-. Secretary for the Americas (science), Charles Darwin Foundation for the Galapagos Isles, 1969-90. Publications: (with L. Siebert, L. McClelland, D. Bridge, and others) Volcanoes of the World: A Regional Directory, Gazetteer, and Chronology of Volcanism during the Last Ten Thousand Years, 1981, 2nd ed, 1994; (with R.S. Fiske) Krakatau 1883: The Volcanic Eruption and Its Effects, 1983; (with R.S. Fiske & E. Nielsen) The Volcano Letter, 1986; (with L. McClelland and others) Global Volcanism 1975-1985, 1989; (with J. Luhr) Parícution: The Volcano Born in a Mexican Cornfield, 1993. Address: National Museum of Natural History, Smithsonian Institution, NHB 119, Washington, DC 20560, U.S.A.