Hieronymus Bosch (Jeroen van Aken, ca 1450-1516), The Last Judgment, triptych (1486), oil on wood, right wing, detail. Groeninge Museum, Bruges. A striking scene here is a large cauldron on wheels, boiling a monk and a nun, and pulled by a helmeted figure, riding a cow, whose horns are fixed to the wooden rudimentary waggon. The cow-riding man, holding an eucharistic chalice, inevitably evokes a corresponding scene in the left wing of Bosch’s The Haywain (see www.flickr.com/photos/snarfel/5933329538/).