Donkey wearing glasses, A donkey, sitting at a desk in front of a classroom of beasts with a fly-swatter on his hoof, is wearing glasses and reading a huge book. Image taken from De fide concubinarum in sacerdotes. Questio accessoria causa ioci et vrbanitatis in quodlibeto Heidelbergensi determinata, quibusdam nouis additioibus denuo illustrata. (De fide meretricum in suos amatores. Questio determinata a magro Iacobo hartlieb.). Originally published in Mentz? 1510?.