CONTENTS

[Foreward]
[List of Books Consulted]
[Preface]
[WEEK I—PILOTING]
[Tuesday Lecture]The Compass1
[Wednesday Lecture]Pelorus; Parallel Rulers; The Lead, Sounding Machine, Dividers and Log6
[Thursday Lecture]The Chart10
[Friday Lecture]The Protractor and Sextant13
[Saturday Lecture]Fixes, Angles by Bearings and Sextant16
[WEEK II—DEAD RECKONING]
[Tuesday Lecture]Latitude and Longitude20
[Wednesday Lecture]Useful Tables—Plane and Traverse Sailing23
[Thursday Lecture]Examples on Plane and Traverse Sailing (Continued)27
[Friday Lecture]Mercator Sailing28
[Saturday Lecture]Great Circle Sailing—The Chronometer30
[WEEK III—CELESTIAL NAVIGATION]
[Tuesday Lecture]Celestial Co-ordinates, Equinoctial System, etc.34
[Wednesday Lecture]Time by the Sun—Mean Time, Solar Time, Conversion, etc.36
[Thursday Lecture]Sidereal Time—Right Ascension43
[Friday Lecture]The Nautical Almanac47
[Saturday Lecture]Correction of Observed Altitudes52
[ WEEK IV—NAVIGATION]
[Tuesday Lecture]The Line of Position55
[Wednesday Lecture]Latitude by Meridian Altitude58
[Thursday Lecture]Azimuths of the Sun61
[Friday Lecture]Marc St. Hilaire Method by a Sun Sight63
[Saturday Lecture]Examples on Marc St. Hilaire Method by a Sun Sight66
[WEEK V—NAVIGATION]
[Tuesday Lecture]A Short Talk on the Planets and Stars—Identification of Stars—Time of Meridian Passage of a Star66
[Wednesday Lecture]Latitude by Meridian Altitude of a Star—Latitude by Polaris73
[Thursday Lecture]Marc St. Hilaire Method by a Star Sight74
[Friday Lecture]Examples: Latitude by Meridian Altitude of a Star; Latitude by Polaris; Marc St. Hilaire Method by a Star Sight75
[Saturday Lecture]Longitude by Chronometer Sight of the Sun76
[ WEEK VI—NAVIGATION]
[Tuesday Lecture]Longitude by Chronometer Sight of a Star79
[Wednesday Lecture]Examples on Longitude by Chronometer Sight of a Star80
[Thursday Lecture]Latitude by Ex-Meridian Altitude of the Sun81
[Friday Lecture]Examples: Latitude by Ex-Meridian Altitude of the Sun83
[Saturday Lecture]Finding the Watch Time of Local Apparent Noon83
[WEEK VII—NAVIGATION]
[Tuesday Lecture]Compass Error by an Azimuth88
[Wednesday Lecture]Correcting Longitude by a Factor89
[Thursday Lecture]The Navigator's Routine—A Day's Work at Sea91
[Friday Lecture]Day's Work105
[Saturday Lecture]Day's Work105
[WEEK VIII—NAVIGATION]
[Monday Lecture]Day's Work107
[Tuesday Lecture]Day's Work107
[Wednesday Lecture]Day's Work108
[Thursday Lecture]Day's Work108
[Additional Lecture]Compass Adjustment109

WEEK I—PILOTING


TUESDAY LECTURE

The Compass

Everyone is supposed to know what a compass looks like. It is marked in two ways—the old way and the new way. Put in your Note-Book this diagram:

The new way marked on the outside of the diagram, starts at North with 0°, increases toward the right through East at 90°, South at 180°, West at 270° and back to North again at 360° or 0°.