Bartholomew on the Asp Exercise 1 Exercise 2 Bartholomew on the Chameleon Exercise 1 Exercise 2 Bartholomew on Dreams Exercise 1 Exercise 2 Exercise 3 Bartholomew on Perverse Angels Exercise 1 Exercise 2 Exercise 3 Bartholomew on the Trinity Exercise 1 Exercise 2 Richard Rufus on Quicksilver, Sulfur, and the Elements Exercise 1 William of Auvergne on Spiders Exercise 1 Exercise 2