- BA, Luther College, Decorah Iowa
- BA, MA, Oxford University
- PhD, Johns Hopkins University
- Ancient Greek philosophy
- ancient biological and medical science
- medical ethics
- medieval philosophy
2020 “The Techne of Nutrition in Ancient Greek Philosophy.” Archai 29: 1-34.
2017 “Philosophy and Rhetoric in Western Greece: Focus on Empedocles and Gorgias.” In H. Reid, D. Tanasi & S. Kimbell, eds. Politics and Performance in Western Greece. Parnassos Press. 197-208.
2016 “The Philosophical Climate in Magna Graecia from the mid-6th to the mid-4th BCE.” in H. L. Reid & D. Tanasi, eds. Philosopher Kings and Tragic Heroes. Parnassos Press. 1-24.
1989 "Michael of Ephesus and the History of Zoology." The classics in the Middle Ages: papers of the Twentieth Annual Conference of the Center for Medieval and Early Renaissance Studies. 265-282.
1983 "Biological Theory in Porphyry's De abstinentia." Ancient Philosophy III.2 (1983): 149-159
1970 "The Continuous Analogy." in Martin A. Bertman & Onnik K. Keshishian, eds. Angora. State University of New York College at Potsdam. 20-42.