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Logarithmical Arithmetic

New and Complete Epitome of Practical Navigation

Norie, J. W. 1828

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Funding for digitization provided by The Andrew W. Mellon Foundation

Preface
Contents
Explanation of Tables
Introduction
Decimal Arithmetic
Logarithmical Arithmetic
Practical Geometry – Definitions – Problems
Description and Use of Gunter’s Scales – Of the common Gunter – Of the sliding Gunter
Description and Use of the Sector
Plane Trigonometry – Right-Angled Trigonometry – Oblique-Angled Trigonometry
Geography – Of the Figure and Magnitude of the Earth – Of the natural Divisions of the Earth – Of the Imaginary Divisions of the Earth – Of Latitude and Longitude
Description and Use of the Log, Half-Minute Glass and Compass – Of the Log and Half-Minute Glass – Of the Mariner’s Compass
Plane Sailing
Traverse Sailing
Parallel Sailing
Middle Latitude Sailing
Mercator’s Sailing
Oblique Sailing
Current Sailing
Description and Use of Charts – Of Plane Charts – Of Mercator’s Charts – Use of Mercator’s Charts
Maritime Surveying
Astronomy – Of the Solar System – Of the Sphere – Of the Diameter of the Sun, Moon, &c. – Depression or Dip of the Horizon – Refraction – Parallax
Winds
Tides – Methods of Finding the Time of High Water
Description and Use of Hadley’s Quadrant – Adjustments of the Quadrant – Use of the Quadrant
Of Finding the Latitude by Observation – To Find the Latitude by a Meridian Altitude of the Sun – To Find the Latitude by a Meridian Altitude of a Star
Variation of the Compass – Description of the Azimuth Compass – Use of the Aximuth Compass – To find the Variation by an Amplitude – To Find the Variation by an Azimuth – To Find the true Azimuth by Another Method
Description and Use of Hadley’s Sextent – Adjustments of the Sextant – Use of the Sextant
Description and Use of the Artificial Horizon
Of Finding the Longitude by Observation – Method of Taking a Lunar Observaton – To Find the Apparent Time by an Altitude of the Sun – To Find the Apparent Time by an Altitude of a Star – To Find the Error of a Watch by Equal Altitudes of the Sun
To Find the Longitude by Lunar Obervations – To Find the Apparent Altitude of the Sun, Moon, or a Star
To Find the Longitude by Chronometers or Time-Keepers – To Find The Rate of a Chronometer of Time-Keeper
Method of Keeping a Journal at Sea – To Correct the Courses Steered by Compass – Rules for Correcting the Dead Reckoning – General Rules for Working a Day’s Work – Examples of Day’s Works
Journal of a Voyage from England to Madeira
Form of a Navy Log
Form of an East India Journal
Explanation of Sea Terms
Examination of a Young Sea Officer
Tables
Directions and Tables
Elements of Geometry
Mathematical Geometry

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