The Practical Navigator: Being a Complete Epitome of Navigation: to which are Added, All the Tables Requisite for Determining the Latitude and Longitude at Sea: Containing the Different Kinds of Sailing and Necessary Corrections for Lee-way, Variation, &c. Exemplified in a Journal at Sea ... The Whole Illustrated with Engravings

John Hamilton Moore

T. Cadell, 1828 - Nautical astronomy - 407 pages

Contents

• Dkpimal Arithmetic: 1
• Projection of the Lines of Sines Tangents and Secants on the Plane: 8
• Difference of Latitude and Departure for Points and Quarters: 18
• Multiplication by Logarithms I I J Hi L OA Division by Logarithms Lt24: 26
• Trigonometry J1: 47
• Abbreviations t: 69
• Middle Latitude Sailing: 81
• Mercator s Sailing: 95
• Construction and Use of Mercators Chart: 120
• Of Winds: 126
• Of Tides: 133
• Of the LogLine and HalfMinute Glass: 147
• Description and Use of Hadleys Quadrant and Sextant: 151
• To observe the Angular Distance between the Sun and Moon: 160
• Projection of the Plane Scale lis Parallax ami Refraction: 162
• To work an Observation or to find the Latitude of a Place by: 164
• The Variation of the Compass: 171
• The Methodof Keeping a Ships Reckoning at Sea: 182
• Rules for correcting the Dead Reckoning: 189
• Four separate DaysWork _ _: 203
• Abstract of the Journal: 221
• To find the Latitude by one Altitude of the Sun taken within a: 238
• To findthe Latitude by the Meridian Altitude of a Planet: 244
• Horizontal view of the instrument: 251
• To find the Apparent Time and thereby regulate the Going of the I: 252
• Another Method of finding the Apparent Time 289: 259
• Having the Apparent Altitude of the Objects and their Apparent: 265
• Examples of the Lunar Observations 26?: 274
• To find the Suns true Altitude 283 V: 283
• To find the Longitude by a Chronometer or Timekeeper: 289
• Description and Use of the Artificial Horizon 295: 295
• A The central mirror or great speculum: 296
• Manner of Surveying Sea Coasts and Harbours: 307
• To find the Height and Distance of Objects at Sea: 315
• Explanation of the Rigging of a Ship of War i I: 349
• The Method of Exercising ShipsCompanies for War 3r: 372
• i: 379
• Logarithmic Sines Tangents and Secants to every Point and Quarter: 391
• Decimals to every Minute in twelve Hours t T1j iXXiiiU: 400
• For computing the Effects of Parallax on the Moons Distance from: 192
• Latitudes and Longitudes XXXVIIL 1: 203
• A General Tide Table fl XXXIX: 219

Bibliographic information

• Title: The Practical Navigator: Being a Complete Epitome of Navigation: to which are Added, All the Tables Requisite for Determining the Latitude and Longitude at Sea: Containing the Different Kinds of Sailing and Necessary Corrections for Lee-way, Variation, &c. Exemplified in a Journal at Sea ... The ...
• Author: John Hamilton Moore
• Editor: Joseph Foss Dessiou
• Edition: 20
• Publisher: T. Cadell, 1828
• Original from: the University of Michigan
• Digitized: Aug 12, 2009
• Length: 407 pages