“Lessons from the Body: Alchemy and Spiritual Exercises in the First Lesson on Excellence of Zosimos of Panopolis,” in S. Slaveva-Griffin and I. Ramelli (eds), Lovers of the Soul, Lovers of the Body: Philosophical and Religious Perspectives in Late Antiquity
, Hellenic Studies 88, Washington (D.C.), 193–214.
“Transmutation Theory and the Dating of the Alchemical Recipe ‘On the Same Divine Water’ ” in Andrea Le Moli, Lela Alexidze, (eds), Prote Hyle: Notions of Matter in the Platonic and Aristotelian Traditions, Palermo: Palermo University Press, 2017.
“Augustine and the Invention of Magical Dissent” in Brian E. Brown, John A. Doody and Kim Paffenroth (eds.), Augustine and world religions,
Lanham: Lexington, 2008, 3-20.
“Magic and religion in Augustine and Iamblichus”, in Elizabeth DePalma Digeser and Robert M. Frakes, Religious Identity in Late Antiquity,
Toronto: Edgar Kent, 2006, 59-83