Concept
Quadrants (Astronomical instruments) - Early works to 1800
Catalogue
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The description and use of four several quadrants, two great ones, and two small ones. With the Use of A Diagonal-Scale and Semicircle. Each of them accommodated with Lines and Circles, for the Resolving of Propositions Instrumentally, In Chronology, Astronomy, Altimetria, Longimetria, Navigation, Dialling. Invented and written by the Ingenious John Collins, and engrav'd by the curious hand of Mr. Henry Sutton; with additions, not in the former treatise, by John Good.
Collins, John, 1625-1683.Date: MDCCL. [1750]- Books
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The use of a mathematical instrument, called a quadrant : Shewing very plainly and easily to know the exact height or distance of any steeple, tree, or house, &c. Also to know the hour of the day by it: the height of the sun, moon, or stars: and to know the time of sun-rising, and setting; and the length of every day in the year: the place of the sun in the ecliptick: the azimuth, right ascension, and declination of the sun. With many other necessary and delightful conclusions. Performed very readily. Written by [W.P.].
W. PDate: 1655- Books
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Descriptio astrolabii nautici novi a Johanne Hadley, Armig. V. P. R. S. inventi, apti ad observationes syderum altitudinis, vel Angulorum quorumcunque. Annexa sunt praecepta, quibus Observationes illae facilius certiusque a Nautis peragi possint.
Hadley, George, 1685-1768.Date: 1734?]- Books
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The theory of Hadley's quadrant demonstrated; and from thence its nature, construction, and uses, are fully shewn. With a new table of the sun's declination for finding the latitude of the place. To which is added, a new construction of the quadrant, which, by Means of an artificial horizon, renders it of universal Use by Sea and Land. By Benj. Martin.
Martin, Benjamin, 1705-1782.Date: 1768- Books
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Directions for using the new improved Hadley's quadrant; with the new method of adjusting the glasses for the back observation. By his Majesty's Royal Patent. Made by P. and J. Dollond, Opticians To His Majesty, in St. Paul's Church Yard, London.
P. and J. DollondDate: 1772?]