Book V

Start reading Book V

  1. Chapter 1: ON DECLINATION.
  2. Chapter 2: Diagram of declinations of the magnetick needle, when
  3. Chapter 3: *
  4. Chapter 4: Concerning the length of a versorium convenient
  5. Chapter 5: That declination does not arise from the attraction
  6. Chapter 6: On the proportion of declination to latitude, and
  7. Chapter 7: Explanation of the diagram of the rotation of
  8. Chapter 8: Diagram of the rotation of a magnetick needle,
  9. Chapter 9: Demonstration of direction, or of variation from the
  10. Chapter 10: On the variation of the declination.
  11. Chapter 11: On the essential magnetick activity sphærically
  12. Chapter 12: Magnetick force is animate, or imitates life; and in