The New American Practical Navigator: Being an Epitome of Navigation ...

E. & G.W. Blunt, 1852 - Nautical astronomy - 777 pages

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Demonstration of the most useful propositions of geometry	7

Demonstration of theorems in plane trigonometry	13

Construction of the plane scale	18

Description and use of the sector	25

Division by logarithms	31

Table of solutions of the various cases of trigonometry	37

A short introduction to astronomy and geography	45

Examples in geography	48

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

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

Difference of latitude and departure for points	52

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 to correct the middle latitude	76

Meridional parts	78

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

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

Suns declination	131

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

IV	247

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

A Correction for the daily variation of the equation of time	77

Dip of the horizon	88

To find the correction and logarithm of a lunar observation when	97

For turning degrees and minutes into time and the contrary	131

For finding the latitude by two altitudes of the	148

XXIV	160

Logarithmic sines tangents and secants	169

Variation of the suns altitude in one minute from noon	239

Longitudes and latitudes of the fixed stars	245

Logarithms in Lyonss improved method 253	253

Third correction in Lyonss improved method 275	275

ANAMBAS ISLANDS	356

COCHIN CHINA coast	365

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	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	443

Copyright

Title	The New American Practical Navigator: Being an Epitome of Navigation ...
Author	Nathaniel Bowditch
Edition	22
Publisher	E. & G.W. Blunt, 1852
Original from	the New York Public Library
Digitized	Jul 17, 2009
Length	777 pages

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