- 1985 - "Determination of Oxidative Stability of Rosin Products by High Pressure Differential Scanning Calorimetry," seminar for Hercules, Inc.
Technical Groups in Melbourne and Sydney, Australia
1986 - Hungarian Academy of Science, Budapest, Hungary
1986 - Czechoslovakian Academy of Science, Prague, Czechoslovakia
1987 - H.B. Fuller Technical Group, Minneapolis, Mn.
1988 - University of Philippines, Manila, Philippines
1988 - Rika-Hercules, Kyoto, Japan
1989 - Bangkok, Thailand
- 1986 - "Autoxidatian and Antioxidants," seminar, University of Southern Mississippi, Hattiesburg, Ms.
- 1987 - "The Chemistry of Color," seminar for H.B. Fuller Technical Group, Minneapolis, Mn.
- 1988 - "Have Any Two Raindrops the Same Number of Molecules,"
1988 - Rika-Hercules, Kyoto, Japan
- 1990 - Seminar on "Naval Stores," Symposium on Chemicals from Biomass, American Chemical Society National Meeting, Washington, DC
- 1990 - "A Chemist Look at a Pine Tree," Sigma Xi Lecture, University of Southern Mississippi, Hattiesburg, Ms.
- 1992 - "A Simplified Method of Determining Oxidative Stability,"
Fall Seminar Series, Dept. of Chemistry and Biochemistry, University of Southern Mississippi, Hattiesburg, Ms.
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