Ascribed to Johannes Justus Lanspergius, who wrote a similar pamphlet entitled "Dialog zwischen einem lutherischen Soldaten und einem Mönche über das Klosterleben"--cf. Wetzer, Kirchenlexikon (1889) v. 6, c. 1699 ff.; and dealers' description.
The two woodcuts, representing St. George and St. Jerome, are by Anton Woensam--cf. Merlo, Kölnische Künstler nos. 366 and 368.
Signatures: a-l8.