MARK WHEELIS,^* ROCCO CASAGRANDE,^** LAURENCE V. MADDEN<sup>***


*</sup>Mark Wheelis (mlwheelis@ucdavis.edu) works in the Section of Microbiology, University of California, Davis, CA 95616. His research interests are in the history of biological warfare, especially in the First World War, and the scientific aspects of biological and chemical arms control.
^**Rocco Casagrande (rcasagrande@surfacelogix.com) works for Surface Logix, Inc., Brighton, MA 02135. His research interests are in the development and testing of devices to detect and analyze biological weapons and in biological defense policy.
^***Laurence V. Madden (MADDEN.1@osu.edu) is with the Department of Plant Pathology, Ohio State University, Wooster, OH 44691. His research interests are in epidemiology of plant diseases, modeling and analysis of epidemics, and the prediction of disease outbreaks and crop losses.