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Quadrants (Astronomical instruments) - Early works to 1800 Reset filters

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Books
Online
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
Online
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
Online
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
Online
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
Online
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?]
Books
Online
Useful, easy, directions for seamen, who use Hadley's quadrant. Shewing, to the meanest capacity, how to hold the quadrant to take the Fore and the Back Observations of the Sun and of a Star; and the Meaning of the Observations. How to examine whether the Index-Glass, and the Fore and Back Horizon-Glasses, stand in a right Posture; and how to set them right when they do not stand right. The Meaning of what is called the Dip of the Horizon, or the Height of the Eye above the Water; and how to find it by the Quadrant. The Meaning of what is called the Resraction of the Air, and how to prove it. Many other very necessary Things, which every Seaman, who uses the Quadrant, should understand, if he be desirous of knowing the Meaning of what he is about. A Book of this Sort has been much desired by some Seamen, and it may be very useful to many.
Date: [1772]
Books
Online
A description of a new instrument for taking the latitude or other altitudes at sea. With directions for its use.
Hadley, George, 1685-1768.Date: MDCCXXXIV. [1734]
Books
Online
The use of the mathematical instrument, called a quadrant: with which plainly and easily to know the exact height and 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 the 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. Perform'd very readily. As also the Use of a Nocturnal; whereby you may learn to know the Stars in Heaven, and the Hour of the Night by them. With many other delightful Operations.
W.P.Date: 1717
Books
Online
Instructions for the use of Hadley's quadrant, containing, the principles on which that admirable instrument is constructed, with a description and use of the Nonius divisions. As made and sold by George Adams, Mathematical Instrument-Maker to his Royal Highness George Prince of Wales. At Tycho Brahe's head in Fleet-Street, between Serjeant's-Inn and Water-Lane. Where Gentlemen may be supplied with all Sorts of Mathematical Instruments for Land or Sea; Tellescopes of all Sizes for Day or Night; together with all other Optical and Philosophical Instruments of the newest Invention.
Adams, George, 1750-1795.Date: 1789?]
Books
Online
Short, but plain and easy, directions for the use of Hadley's quadrant. In which care is taken not to encumber it with more than is necessary, or needless encomiums, but to render it useful to the learner; it being now so well known to the world as not to want an advocate in its praise. To which is added, a description of the vernier scale, commonly call'd nonius's division.
Date: [1755?]
Books
Online
The description and uses of Barston's new-invented universal astronomical quadrant, which appears from authentick certificates transmitted to the Right Honourable the Lords of the Admiralty, to excel all others in navigation; and from repeated experiments of able astronomers, &c. to be more serviceable in astronomy, surveying of land, and dialling, than any other hitherto Invented.
Date: M,D.CCXL. [1740]
Books
Online
The theory of Hadley's quadrant, or the rules for the construction and use of that instrument demonstrated. By the Reverend Mr. Ludlam.
Ludlam, William, 1717-1788.Date: M.DCC.LXXI. [1771]
Books
Online
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. As also the use of a nocturnal: whereby you may learn to know the stars in heaven, and the hour of the night, by them. With many other delightful operations. The fourth edition, wherein the mistakes in the former impressions are corrected. By W.P.
W. PDate: 1670
Books
Online
Directions for the use of Hadley's quadrant, with remarks on the construction of that instrument. With considerable corrections and additions. By the Reverend Mr. Ludlam, Late Fellow of St. John's College, Cambridge.
Ludlam, William, 1717-1788.Date: [1790]
Books
Online
The description and use of a portable instrument, vulgarly known by the name of Gunter's quadrant. By which is perform'd most propositions in astronomy; ... To which is added, the use of Nepiar's bones ... By William Leybourn. The third edition, with the addition of the use of Gunter's quadrant in taking the declination of a plain ... By Charles Leadbetter.
Leybourn, William, 1626-1716.Date: 1731 [1732]
Books
Online
A description of an accurate and simple method of adjusting Hadley's quadrant for the back observation. By Mr. Robert Blair. Published by order of the Committee of Longitude.
Blair, Robert, -1828.Date: 1788]
Books
Online
This instrument is made only by Thomas Heath, at the Hercules, next to the Fountain Tavern in the Strand, having the patterns corrected by the translator.
Heath, Thomas, 1698-1773.Date: 1735?]
Books
Online
The description and use of the sea octant, commonly called Hadley's quadrant; wherein its use is exemplified by proper examples and tables, and an account given of the new additional apparatus that are applied to it, for determining the latitude and longitude with the greatest possible Accuracy. To Which is Annexed, a Demonstration of the Theory of This Excellent Instrument. The second edition corrected. By William Jones Mathematical Instrument Maker.
Jones, William, 1763-1831.Date: [1795]
Books
Online
Directions for the use of Hadley's quadrant, with remarks on the construction of that instrument. By the Reverend Mr. Ludlam.
Ludlam, William, 1717-1788.Date: M.DCC.LXXI. [1771]
Books
Online
Remarks on the Hadley's quadrant, tending principally to remove the difficulties which have hitherto attended the use of the back-observation, and to obviate the errors that might arise from a want of parallelism in the two surfaces of the index-glass. By Nevil Maskelyne, F.R.S. Astronomer Royal.
Maskelyne, Nevil, 1732-1811.Date: M.DCC.LXXII. [1772]
Books
Online
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. As also the use of a nocturnal: whereby you may learn to know the stars in heaven, and the hour of the night, by them. With many other delightful operations. The third edition, wherein the mistakes in the former impressions are corrected. By W.P.
W. PDate: 1665
Books
Online
The description and use of a portable instrument, vulgarly known by the name of Gunter's quadrant ... To which is added, the use of Nepiar's bones ... Collected and digested ... for the use of young practitioners. By William Leybourn.
Leybourn, William, 1626-1716.Date: 1721
Books
Online
The Construction and use of the sea quadrant, commonly called Hadley's quadrant. Containing such directions, as are necessary to render the use of this noble instrument both easy and certain, particularly with respect to the back observation, which has been hitherto neglected for want of proper instructions. To which is added, an introduction, explaining the theory of the instrument in a plain and familiar manner, with correct tables of the sun's declination, which being calculated for four years are thereby rendered perpetual.
Date: 1757
Books
Online
The description and use of that necessary instrument call'd, Gunter's quadrant; Whereby many propositions in Astronomy, &c. are very easily perform'd. Such as the sun's altitude at any time; his right ascenfion and declination; his longitude or place in tho ecliptic; his amplitude and azimuth; his rising and setting; the hour of the day or night, and other conclusions exemplify'd at large. To which is added, A table of the sun's place and declination for every day in the year; also the time of the Sun's rising and setting, calculated for the latitude of Leeds, being 53 d. 50 m. (price Six Pence.)
Gargrave, Geo. (George), 1710-1785.Date: 1745