Book III

Start reading Book III

  1. Chapter 1
  2. Chapter 2: The Directive or Versorial Virtue (which we call
  3. Chapter 3: How Iron acquires Verticity through
  4. Chapter 4: Why Iron touched by a Loadstone acquires an opposite
  5. Chapter 5: On the Touching of pieces of Iron
  6. Chapter 6: What seems an Opposing Motion in Magneticks
  7. Chapter 7: A determined Verticity and a disponent Faculty are what
  8. Chapter 8: Of Discords between pieces of Iron upon the same pole
  9. Chapter 9: Figures illustrating direction and showing varieties
  10. Chapter 10: On Mutation of Verticity and of Magnetick
  11. Chapter 11: On the Rubbing of a piece of Iron on a Loadstone
  12. Chapter 12: In what way Verticity exists in any Iron that has
  13. Chapter 13: Why no other Body, excepting a magnetick, is imbued
  14. Chapter 14: The Placing of a Loadstone above or below a magnetick
  15. Chapter 15: The Poles, Æquator, Centre in an entire Loadstone
  16. Chapter 16: If the Southern Portion of a Stone be lessened,
  17. Chapter 17: On the Use and Excellence of Versoria: and how iron