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 of Calculating Eclipses of the Sun and Moon, and Occultations of the Fixed Stars ...

E. & G.W. Blunt, 1839 - Nautical astronomy - 764 pages

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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	30

Plane trigonometry	36

A short introduction to astronomy and geography	45

Explanations of the terms used in astronomy and geography	48

A table of solutions of the several cases of plane sailing	59

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

Questions to exercise the learner in parallel sailing	66

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

Description and uses of the circle of reflection	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	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 wateh previously regulated	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 time of the moons passing the meridian	172

Variation of the suns altitude in one minute from noon	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 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

Redfields theory of storms C 440

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	Jonathan Ingersoll Bowditch
Edition	11
Publisher	E. & G.W. Blunt, 1839
Original from	the New York Public Library
Digitized	Aug 19, 2009
Length	764 pages

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