The New American Practical Navigator: Being an Epitome of Navigation; Containing All the Tables Necessary to be Used with the Nautical Almanac in Determining the Latitude, and the Longitude by Lunar Observations, and Keeping a Complete Reckoning at Sea ... The Whole Exemplified in a Journal, Kept from Boston to Madeira, in which All the Rules of Navigation are Introduced ... With an Appendix, Containing Methods of Calculating Eclipses of the Sun and Moon, and Occultations of the Fixed Stars ...

E. & G. W. Blunt, 1849 - Nautical astronomy - 638 pages

Demonstration of the most useful propositions of geometry	7

Geometrical problems	15

Description of Gunters scale	21

To find the logarithm of any number and the contrary	28

To find the log sine tangent c corresponding to any number of degrees and minutes	35

Rightangled plane trigonometry	41

Explanations of the terms used in astronomy and geography	47

Examples in geography	48

To regulate a chronometer by equal altitudes of the sun	219

To find the longitude at sea by lunar observations	225

Examples of lunar observations	232

Second method of working a lunar observation	239

Table of corrections for second differences	245

Method of combining several lunar observations and determining the error of the chro	251

To allow for the change of rate in a chronometer	257

To correct the dead reckoning	263

change of 100 seconds in its declination	70

Table of solutions of the various cases of Mercators sailing	79

To work a compound course by middle latitude or Mercators sailing	86

To find the difference between the true and apparent directions of the wind	97

Gauging	103

Third correction in Lyonss improved method	107

To survey a coast in sailing along shore	109

To reduce soundings taken at any time of the tide to low water	115

Tides	120

Of the logline and halfminute glass	126

Description and use of a sextant of reflection	133

Verification of the mirrors and colored glasses	137

Verification of the mirrors and colored glasses	143

To observe the transit of any heavenly body over the meridian	150

To find the distance of the land in order to calculate the dip	155

To calculate the true amplitude	159

To find the latitude by a meridian altitude of the sun or a fixed star	166

To find the latitude by the moons meridian altitude	171

To estimate the effects of small errors in the observations	179

Second method	185

Questions to exercise the learner in working double altitudes	193

To find the latitude by one altitude of the sun having your watch previously regulated	200

To find the latitude by the polar star	206

To find the time at sea by the moons altitude	213

Explanations of sea terms	288

Evolutions at sea	304

Correction for a planet whose horizontal parallax is	35

Meridional parts	iii

VI	61

A Parallax in altitude of a planet	86

sun is used	97

Natural sines and cosines	131

Log sines tangents c to points and quarter points	169

XXXII	240

Reductions of latitude and horizontal parallax	246

A table of solutions of the several cases of plane sailing	254

Parallel sailing	276

Questions to exercise the learner in parallel sailing	282

Theorems in middle latitude sailing	303

Mercators sailing	387

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

end of a solar eclipse	409

To project an eclipse of the moon	415

To project an occultation of a fixed star	423

To find the longitude of a place by measuring the distance of the moon	429

Given the right ascension and declination to find the longitude	435

To find the longitude of a place from the beginning or end of a solar	442

Title	The New American Practical Navigator: Being an Epitome of Navigation; Containing All the Tables Necessary to be Used with the Nautical Almanac in Determining the Latitude, and the Longitude by Lunar Observations, and Keeping a Complete Reckoning at Sea ... The Whole Exemplified in a Journal ...
Author	Nathaniel Bowditch
Edition	19
Publisher	E. & G. W. Blunt, 1849
Original from	the New York Public Library
Digitized	Dec 2, 2009
Length	638 pages

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