Lectures

"The Galapagos Islands" - Associated Colleges of the Chicago Area (ACCA) Elmhurst College (Spring 1985).

"Biology of honey ants in Arizona, Colorado and Australia" - Southwestern Research Station (July 1985).

"Biology of honey ants in Arizona, Colorado and Australia" - Philadelphia Academy of Natural Sciences (Jan 1986).

"Islands lost in time - the Galapagos Islands" - Island Biology lecture series - The Chicago Academy of Sciences (Feb 1986).

"The honey ants of Arizona, Colorado and Australia" - Lackawanna Audubon Society (Oct 1986)

"Honey ants of the western United States and central Australia" - Spring Lecture Series - American Museum of Natural History (New York) (Mar 1990)

"A honey of an ant" - Visiting Professor Lecture Series - U.S. Air Force Academy (Oct 1991).

"A report on the January 2007 trip to Costa Rica and lessons learned from a quarter of a century teaching Tropical Biology." Dept. of Biology, University of Scranton, PA (Feb 2007).

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