A Memorable Fancy, Plate 15

I was in a printing house in hell & saw the method in which
 knowledge is transmitted from generation to generation. In the first chamber
 was a dragon-man, clearing away the rubbish from a cave's mouth; within, a
 number of dragons were hollowing the cave. In the second chamber was a viper
 folding round the rock & the cave, and others were adorning it with gold,
 silver and precious stones. In the third chamber was an eagle with wings and
 feathers of air: he caused the inside of the cave to be infinite; around were
 numbers of eagle-like men, who built palaces in the immense cliffs. In the
 fourth chamber were lions of flaming fire, raging around & melting the metals
 into living fluids. In the fifth chamber were unnam'd forms, which cast the
 metals into the expanse. There they receiv'd by men who occupied the sixth
 chamber, and took the forms of book & were arranged in libraries.