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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
  by: Comine, William
  Published: (1739)
• Tables to improve and render more general the method of finding the latitude, by observing two altitudes of the sun, and the internal of time between : By John Brinkley, A.M. Andrew's professor of astronomy, Dublin; late Fellow of Caius College, Cambridge. Published by order of the commissioners of Longitude
  by: Brinkley, John
  Published: (1794)
• A practical method : To Discover the Longitude at Sea, By a New Contrived Automaton. Freed from all the Various Effects of Air in different Climates, &c. And not Liable to Disorder by the Irregular Motion of a Ship. The whole Method Rendered Plain and Easie to be Understood by every Mariner. With an account of the author's new instrument for taking the latitude more accurately at sea, than hath hitherto been practised. Humbly Offer'd to the Consideration, and Use of the Publick. By John Ward. of Chester. Author of the Young Mathematicians Guide, &c
  by: Ward, John
  Published: (1714)
• The practical observer : Or, The new method of finding the latitude at sea, by taking two altitudes, either in the forenoon or afternoon. And also, the new method of finding the longitude at sea, by taking the distance of the moon from the sun, or a fixed Star, &c. Rendered easy to the meanest capacity. By J. Hamilton Moore, author of the practical navigator, and seaman's new daily assistant. To which is added, the new Solar tables. and table of natural sines, with the use of the quadrant and sextant
  by: Moore, John Hamilton
  Published: (1775)
• 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
  by: Dunn, Samuel
  Published: (1782)