Note 507 — Chapter IV · THE SOURCES FOR THE PERIOD 1100–1250 A. D.
Reading edition
Zarncke, op. cit., p. 878. In some manuscripts this Letter is said to be a Latin translation by Archbishop Christian of Mainz; Thorndike, however, observes that it seems “even in its earliest and briefest form without doubt a Western forgery and bears the marks of its Latin origin” (Thorndike, Magic, vol. ii, 1923, p. 240).