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; Illustrated by Proper Rules and Examples: The Whole Exemplified in a Journal Kept from Boston to Madeira, in which All the Rules of Navigation are Introduced ...

E. & G. W. Blunt, proprietors, 1837 - Nautical astronomy - 756 pages

SIGNS and abbreviations used in this work	1

Demonstration of the most useful propositions of geometry	7

Demonstration of theorems in plane trigonometry	13

Construction of the plane scale	18

Meridional parts	22

Description and use of the sector	25

Division by logarithms	31

Table of solutions of the various cases of trigonometry	37

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

Method of combining several lunar observations	251

To allow for the change of rate in a chronometer	257

A short introduction to astronomy and geography	45

Examples in geography	51

A table of solutions of the several cases of plane sailing	53

Parallel sailing	63

Table to correct the middle latitude	76

Table of solutions of the various cases of Mercators sailing	89

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

Gauging	103

To survey a harbor by observations on shore	111

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

To measure the angular distance of the moon from a star	137

Description and use of a portable transit instrument	145

Tables for correcting the adjustments of a transit instrument	153

IV	156

Variation of the compass	158

On the dip of the magnetic needle	164

To find the time of the moons passing the meridian	170

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

IV	208

To correct the dead reckoning	263

Explanations of sea terms	288

A signifies triangle As triangles	293

Evolutions at sea	304

1	306

VI	77

A Parallax in altitude of a planet	86

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

to front the titlepage Plate VIII to front page 116	116

For turning degrees and minutes into time and the contrary	131

to front page 50 XI to front page 150	144

For finding the latitude by two altitudes of the	148

XXIV	160

Logarithms of numbers	169

XXXII	239

Longitudes and latitudes of the fixed stars	245

change of 100 seconds in its declination 251	251

Third correction in Lyonss improved method 275	275

Correction for a planet whose horizontal parallax is 35	326

CATALOGUE OF THE TABLES with examples of the uses of those not explained in other	390

To find the horary motion of the moon	398

To calculate the moons parallax in latitude and longitude	404

To calculate the longitude of a place from the observed beginning	410

To project an eclipse of the sun	417

To calculate the beginning or end of an eclipse or occultation	425

Given the latitude of the moon and longitude of the moon and sun	433

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; Illustrated by Proper Rules and Examples ...
Author	Nathaniel Bowditch
Edition	9
Publisher	E. & G. W. Blunt, proprietors, 1837
Original from	the New York Public Library
Digitized	Dec 3, 2009
Length	756 pages

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