Chapter 21

then instructs how to turn day into night or night into

day. Next spirits are further considered, those of air and those of fire, their names and their superior spirits, their powers, virtues, and seals. Attention is then given to the four elements and bodies composed thereof, to herbs and plants, and to human nature, after which aquatic and terrestrial spirits are discussed. The future life is then considered and the 33rd chapter, which is the last one of the “second work,” deals with “the consecration of this book.”

[Sidenote: The third “work.”]

The “third work,” which extends from