Sun’s True Bearing, or Azimuth Tables, Computed for Intervals of Four Minutes, Between the Parallels of Latitude 30� N. And 30� S., Inclusive: With Instructions for Using the Tables in Danish, Dutc - Hardcover

John E. Davis

9780332261966: Sun’s True Bearing, or Azimuth Tables, Computed for Intervals of Four Minutes, Between the Parallels of Latitude 30� N. And 30� S., Inclusive: With Instructions for Using the Tables in Danish, Dutc

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ISBN 10: 0332261964 ISBN 13: 9780332261966

Publisher: Forgotten Books, 2018

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Excerpt from Sun's True Bearing, or Azimuth Tables, Computed for Intervals of Four Minutes, Between the Parallels of Latitude 30� N. And 30� S., Inclusive: With Instructions for Using the Tables in Danish, Dutch, French, German, Italian, Portuguese, Russian, and Spanish

The increasing quantity of iron used in the construction of wooden ships and the increasing number of iron ships, render a ready and simple mode of asoer taining the deviation of the compass of paramount importance to the safety of a vessel, as well as to ensure a quick passage by steering exactly the course intended. As is well known, the deviation is not constant, either with regard to the direction of the ship's head, or her position on the globe, the careful navigator is therefore alive to the necessity of checking his compasses by observation, and the greater the facility rendered him for this purpose the more frequently will the observations be made.

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