1 1 The Principles and Praxtice or an Navigation

2 2 List of contents

3 3 Chapter 1 The Earth

4 4 Chapter 2 The Mercator Chart

5 5 Chapter 3 The Sailings

6 6 Chapter 4 Great Circles

7 7 Chapter 5 Celestial Sphere Measurement of positionNautical Almanac

8 8 Chapter 6 Correction of Altitudes

9 9 Chapter 7 Time

10 10 Chapter 8 The Earth-Moon System

11 11 Chapter 9 Planetary and Satellite Orbits

12 12 Chapter 10 The projection of The Celestial Sphere

13 13 Chapter 11 The Motion of The Heavens

14 14 Chapter 12 Position Circles and Position Lines

15 15 Chapter 13 The Reduction of Sights

16 16 Chapter 14 meridian Altitudes

17 17Chapter 15 The Pole Star Problem

18 18Chapter 16 Azimuths and Amplitudes

19 19 Appendix 1

20 20 Index