Seymour Mauskopf is a professor in the Department of History@Duke University. His research interests include the history of chemistry and allied sciences in the 18th and 19th centuries (Crystals and Compounds [1976]); the history of chemical technology, focusing on munitions and explosives; and the history of parapsychology and marginal science (The Elusive Science: Origins of Experimental Psychical Research, with Michael R. McVaugh [1980]).