Philip J. Bushnell is a behavioral toxicologist who earned his Ph.D. in 1978 studying the effects of dietary lead exposure on cognitive and social development in infant monkeys at the Harlow Primate Laboratory at the University of Wisconsin, Madison. A subsequent faculty position at New York University’s Institute of Environmental Medicine provided experience exposing animals to volatile chemicals by inhalation, and generated an awareness of the delicate and sometimes contentious balance between the utility of anthropogenic chemicals and the health and environmental impacts of their use. In 1985, he joined the National Health and Environmental Effects Research Laboratory at the U.S. EPA in Research Triangle Park, NC to develop and implement techniques for assessing the effects of chemicals on learning, memory and attention in rodents. A fruitful collaboration at the EPA with William Boyes, Vernon Benignus, Wendy Oshiro and others focused on characterizing the acute effects of inhaled organic solvents on behavior, and the implications of those effects on public health. In addition to his work at the EPA, Dr. Bushnell serves as Editor-in-Chief of Neurotoxicology and Teratology and is active in the Society of Toxicology, the Neurobehavioral Teratology Society, the International Neurotoxicology Association and the Sigma Xi. Address: EPA, 109 T. W. Alexander Dr., B105-04, Research Triangle Park, NC 27709.