Note 2002 — Chapter LX

Opera, 27, 504-7, De occultis operibus naturae ad quemdam militem. Other forms of the title found in the MSS are, De actionibus occultis naturae, De occultis actionibus rerum, and De operationibus occultis. MSS are numerous: for instance, at Paris alone, BN 3899, 6738A, 6786, 16195; an anonymous De operibus occultis in BN 16096, 13th century, fols. 120v-122r, I find on examination to be that of Aquinas. MSS of it at Munich are: CLM 402, 3754, 6942.