The New Practical Navigator: Being a Complete Epitome of Navigation: to which are Added, All the Tables Requisite for Determining the Latitude and Longitude at Sea: Containing the Different Kinds of Sailing, and Necessary Corrections for Lee-way, Variation, &c. Exemplified in a Journal at Sea ... The Whole Illustrated with Engravings ...

John Hamilton Moore

F. and C. Rivington, 1810 - Nautical astronomy - 336 pages

Contents

• Geometrical Definitions: 1
• Projection of the Line of Sines Tangents and Secants on the Plane: 8
• Description and Use of Gunters Scale: 14
• On the Use of the Sector: 18
• To extract the Root in Logarithms: 24
• Introduction to Navigation: 43
• Abbreviations: 49
• Traverse Sailing: 62
• Middle Latitude Sailing: 73
• Mercators Sailing: 86
• Construction and Use of Mercators Chart: 114
• Of Tides: 120
• Of the LogLine and HalfMinute Glass: 132
• Description and Use of Hadleys Quadrant and Sextant: 143
• To work an Observation or to find the Latitude of a Place by: 147
• The Variation of the Compass: 152
• The Method of Keeping a Ships Reckoning at Sea: 161
• Rules for correcting the Dead Reckoning: 167
• Four separate Days Work: 175
• Journal of a Voyage from London to Madeira and Teneriffe: 179
• Abstract of the Journal: 197
• The Method of finding the Latitude at Sea by two Altitudes ibid: 207
• To find the Apparent Time and thereby regulate the Going of: 218
• A Question for Exercise: 224
• 1st To reduce the Time at Ship to the Time at Greenwich: 227
• Mr Witchels Method: 235
• To find the Altitude of any of the known fixed Stars: 242
• Oblique Sailing: 249
• To take a Draft sailing along Shore ibid: 257
• Current Sailing: 263
• Explanation of the Rigging of a Ship of War 292: 292
• Examination of a young Sea Officer: 293
• The Method of exercising Ships Companies for: 313
• On Ships in Distress: 319
• Directions for restoring the drowned: 326
• setting: 332
• For reducing the Suns Declination to any given Meridian and: 335
• 514702 121: 7
• VI: 45
• XII: 52
• Showing the Time of High Water and Vertical Rise in Feet: 25

Popular passages

Page 237 - Adrift, the state of a ship or vessel broke loose from her moorings, and driven without control, at the mercy of the wind, sea, or current.

Page 33 - ADD the logarithms of the SECOND and THIRD terms, and .from the sum SUBTRACT the logarithm of the FIRST term.

Page 147 - The next item is $3,600 to provide for the changing of two stack elevators, one on the east and one on the west side of the building.

Page 115 - These contrary winds do not shift from one point to its opposite all at once ; in some places the time of the change is attended with calms, in others by variable winds ; and it often happens on the...

Page 16 - EXAMPLE. If the diameter of a circle be 7 inches, and the circumference 22, what is the circumference of another circle, the diameter of which is 14 inches ? Extend from 7 to 22, that extent will reach from 14 to 44 the same way.

Page 3 - In a right triangle, the side opposite the right angle is called the hypotenuse, and the other two sides the legs.

Page 293 - FRANKINCENSE, is to be thrown gently into the Fundament, with a proper Instrument, or the Bowl of a Pipe covered, so as to defend the Mouth of tlie Assistant.

Page 14 - I tenth part ; and the next 2, 2 tenth parts; and 10 at the end will be but one whole number or integer. As the figures are increased or diminished in their value, so in like manner must all the intermediate strokes or subdivisions be increased or diminished ; that is, if the first...

Page 251 - Man the yards. — Is placing men on the yards, in the tops, on the ladder, &c., to execute any necessary duty. Mind the service. — Put on more service. Messenger. — A small kind of cable, which being brought to the capstan, and the cable by which the ship rides made fast to it, it purchases the anchor. To Miss stays.

Page 253 - To elevate any distant object at sea by approaching it ; thus, to raiie the land is used in opposition to lay the land. To Rake. To cannonade a ship at the stern or head, so that the balls scour the whole length of the decks. Range of Cable. A sufficient length of cable drawn upon deck before the anchor is cast loose, to admit of its sinking to the bottom without any check.

Bibliographic information

• Title: The New Practical Navigator: Being a Complete Epitome of Navigation: to which are Added, All the Tables Requisite for Determining the Latitude and Longitude at Sea: Containing the Different Kinds of Sailing, and Necessary Corrections for Lee-way, Variation, &c. Exemplified in a Journal at Sea ...
• Author: John Hamilton Moore
• Editor: Joseph Foss Dessiou
• Publisher: F. and C. Rivington, 1810
• Original from: the University of Michigan
• Digitized: May 18, 2006
• Length: 336 pages