"Syntactic and Semantic Overlaps in Beowulf,"* Philological Association of the Pacific Coast, Los Angeles, California, November 1989
"Peirce, Poinsot, and the Sign-type Triad," Semiotic Society of America 14th Annual Meeting, Indianapolis Indiana, July 1989
"Old Norse Dragon Illuminations: Illusions/Reality," 13th Annual Meeting, Semiotic Society of America, Cincinnati, Ohio, October 1988
"Medieval Textuality: Manuscripts and Genealogy," 12th Annual Meeting, Semiotic Society of America, Pensacola, Florida, October 1987
"Episodic Structures in Medieval Narrative: Synchronicity and Semantic Overcoding," 21st International Congress of the Medieval Institute, Kalamazoo, Michigan, May 1986
"Intertextual Constraints on Dragon Slayer Texts in Old Norse," 11th Annual Meeting, Semiotic Society of America, San Francisco, California, October 1986
"Intertextuality in Old Icelandic," 12th Annual South Eastern Medieval Association, Athens, Georgia, October 1986
"Episodes in Analysis of Medieval Narrative," 10th Annual Meeting, Semiotic Society of America, Reading, Pennsylvania, October 1985
"The Episodic Character of Medieval Narrative," International Summer Institute for Semiotic and Structural Studies, Indiana University, Bloomington, Indiana, June 1985
"Medieval Studies and Semiotics: Perspectives on Research," 9th Annual Meeting, Semiotic Society of America, Bloomington, Indiana, October 1984
"A Semiotic Framework for Analysis of Traditional Lore: The Medieval English Dragon Tradition," International Summer Institute for Semiotic and Structural Studies, June 1983
"Tagmemics as a Semiotic of Literacy," Semiotics and Education Colloquium, Int'l Summer Institute for Semiotic and Structural Studies, June 1983
"Irony and Ambiguity in the Medieval Dragon Code," 7th Annual Meeting, Semiotic Society of America, Buffalo, N.Y., October 1982
"The Episode as Narrative Unit," Graduate Symposium, Indiana University English Department, October 1982
"Approaching the Medieval Dragon," Graduate Symposium, Indiana University English Dept., October 1980
"Christianity and Beowulf," Graduate Symposium, Indiana University English Department, October 1979