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 ... with an Appendix, Containing Methods to Calculating Eclipses of the Sun and Moon, and Occultations of the Fixed Stars ...

E. & G. W. Blunt, 1841 - Nautical astronomy - 636 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	51

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

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

Plane sailing	62

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

Description and use of a sextant of reflection	133

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

Verification of the mirrors and colored glasses	143

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

Refraction of the heavenly bodies	153

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

To calculate the true azimuth	160

To find the latitude by the moons meridian altitude c	171

To estimate the effects of small errors in the observations	179

Second method	185

To find the correction and logarithm of a lunar observation depending	192

Questions to exercise the learner in working double altitudes	193

Fifth method to find the latitude from altitudes and distances used in taking a lunar	200

To allow for the change of rate in a chronometer	257

To correct the dead reckoning	263

Journal from Boston to Madeira	270

Explanations of sea terms	288

Evolutions at sea	304

To find the latitude by a meridian altitude of the sun or a fixed star 160 2	2

For turning degrees and minutes into time and the contrary	131

For finding the latitude by two altitudes of the	148

To find the time of the moons passing the meridian 170	170

Variation of the suns altitude in one minute from noon	239

Reductions of latitude and horizontal parallax	246

Third correction in Lyonss improved method 275	275

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 calculate an eclipse of the sun	417

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

To find the longitude of a place by the moons passage over	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

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 Kept ...
Author	Jonathan Ingersoll Bowditch
Edition	12
Publisher	E. & G. W. Blunt, 1841
Original from	the New York Public Library
Digitized	Aug 19, 2009
Length	636 pages

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