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An introduction to latitude without meridan altitudes; and longitude, at sea; having cotemporary [sic] observations: ... and nautical formulas, engraved on copper plates. By Samuel Dunn; ...
Dunn, Samuel, -1794.Date: 1782- Books
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The calculation of solar eclipses without parallaxes. With a specimen of the same in the total eclipse of the sun, May 11. 1724. Now first made Publick. To which is added, A Proposal how, with the Latitude given, the Geographical Longitude of all the Parts of the Earth may be settled by the bare Knowledge of the Duration of Solar Eclipses, and especially of Total Darkness. With An Account of some late Observations made with Dipping Needles, in order to discover the Longitude and Latitude at Sea. By Will. Whiston, M. A. Sometime Professor of the Mathematicks in the University of Cambridge.
Whiston, William, 1667-1752.Date: 1724- Books
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A new and easy method of finding the latitude on sea or land, having two altitudes of the sun and the time elapsed between the two observations, measured by a watch or other time-keeper. By Samuel Dunn, Teacher of Mathematics.
Dunn, Samuel, -1794.Date: MDCCLXXVIII. [1778]- Books
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Tables of difference of latitude and departure: constructed to every quarter of a degree of the quadrant, and continued from one, to the distance of one hundred miles or chains.
Robertson, J. (John), 1712-1776.Date: M,DCC,XCIX. [1799]- Books
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Improvements in navigation, and philosophy. Which contains, I. An easy method of finding the longitude at sea, which will be easily practicable there, and which will determine the said Longitude within ten or fifteen Minutes at most: Also a more easy Method of finding the Latitude, and that by the same Instrument that finds the Longitude, and to the same Pitch of Exactness, and without any Regard to the Sun's Shining, or the Sun's Declination, or any Calculation; but if the Horizon be clear, Sailers may see the true Number of the Degrees and Minutes of both the Longitude and Latitude of the Place they are in, upon the Instrument before their Eyes. II. In the next place, here is an endeavour, to amend some things, in the present account of the system, and the principal Phaenomena of this visible World; containing great Improvements in Philosophy. By William Comine, A. M. Vicar of Whissendine in Rutland.
Comine, William, -1753.Date: MDCCXXXIX. [1739]