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 ...

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E. & G.W. Blunt, 1853 - Navigation - 783 pages
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Contents

Examples in geography
51
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
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
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 double altitudes
167
To find the latitude by the meridian altitude of a planet
174
First method of calculating double altitudes
180
Third method
189
Fifth method to find the latitude from altitudes and distances used in taking a lunar
197
To find the latitude by the mean of several altitudes of the sun taken near noon by
204
Examples to exercise the learner in finding the mean time
210
To find the apparent time by an altitude of a fixed star
217
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
Explanations of sea terms 388
288
Evolutions at sea
304
Meridional parts 62
62
Suns declination 68
68
To find the correction and logarithm of a lunar observation when a star or either of the planets Venus Mars Jupiter or Saturn is observed 89
89
To find the correction and logarithm of a lunar observation when the sun is used 97
97
To find the correction and logarithm of a lunar observation depending on the moons altitude 98
98
For finding the third correction of a lunar observation 130
130
For turning degrees and minutes into time and the contrary 131
131
Proportional logarithms 132
133
For finding the latitude by two altitudes of the sun 148
148
Natural sines and cosines 160
160
Log sines tangents c to points and quarter points 169
169
To find the time of the moons passing the meridian 230
230
To find the variation of the moons declination fcc 231
231
To find the suns right ascension 237
237
Variation of the suns altitude in one minute from noon
239
To reduce the numbers of Table XXXII to other given intervals from noon 243
243
Errors arising from a deviation of the telescope from a plane parallel to the plane of the instrument 244
244
Longitudes and latitudes of the fixed stars 245
245
Reductions of latitude and horizontal parallax 246
246
Aberration of the fixed stars in right ascension and declination 247
247
XUII Jf utation in right ascension and declination 248
248
Augmentation of the moons semidiameter found by the nonagesimal 249
249
Third correction in Lyonss improved method 375
323
River Plata 839
339
ANAMBAS ISLANDS 866
349
BANCAIsland 864
364
BENGAL coast of 858
380
Extracts from the Nautical Almanac
383
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
421
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
CAROLINE ISLANDS 374
448
CHINA Southern coast 360
461
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