# The New American Practical Navigator: Being an Epitome of Navigation ; Containing All the Tables Necessary to be Used with the Nautical Almanac ... with an Appendix ...

U.S. Government Printing Office, 1868 - Nautical astronomy - 757 pages

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### Contents

 Signs and abbreviations used in this work XX 1 Geometry 4 14 Construction of the plane scale 18 Description and use of the sector 25 Division by logarithms 31 ASCENSIONIsland 33 Table of solutions of the various cases of trigonometry 37 A short introduction to astronomy and geography 45
 To take an altitude by a fore observation 130 Variation observed 163 To find the time of the moons passing the meridian 170 YTo find the time at sea and regulate a watch 208 7 Theorems in middle latitude sailing 67 67 Table to correct the middle latitude 76 76 To find the correction and logarithm of a lunar observation when a star 89 Longitudes and latitudes of the fixed stars 245

 Examples in geography 48 Questions to exercise the learner in plane sailing 58 A table showing how many miles of meridian distance correspond to a degree of longi 64 Table of solutions of the various cases of Mercators sailing 79 To work a compound course by middle latitude or Mercators sailing 87 To find the difference between the true and apparent directions of the wind 97 Gauging 103 To survey a coast in sailing along shore 109 To reduce soundings taken at any time of the tide to low water 115 Tides 119 Currents 124
 CATALogue of THE TABLEs with examples of the uses of those not explained in other 392 To find the horary motion of the moon 400 To calculate the longitude of a place from the observed beginning 409 To project an eclipse of the moon 415 To project an occultation of a fixed star 421 To find the longitude of a place by measuring the distance of the moon 427 To find the longitude of a place by the moons passage over 434 Theorems in spherics 440 To find the longitude of a place from the beginning or end of an occul 446 Mercators sailing 454