The description and uses of the general horological-ring: or universal ring-dyal Being the invention of the late reverend Mr. W. Oughtred, as it is usually made of a portable pocket size. With a large and correct table of the latitudes of the principal places in every shire throughout England and Wales, &c. And several ways to find a meridian-line for the setting a horizontal dyal. By Henry Wynne, maker of mathematical instruments near the Sugar-loaf in Chancery-lane.

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Title: The description and uses of the general horological-ring: or universal ring-dyal Being the invention of the late reverend Mr. W. Oughtred, as it is usually made of a portable pocket size. With a large and correct table of the latitudes of the principal places in every shire throughout England and Wales, &c. And several ways to find a meridian-line for the setting a horizontal dyal. By Henry Wynne, maker of mathematical instruments near the Sugar-loaf in Chancery-lane.
Author: Wynn, Henry, d. 1709.
Publication: London :: printed by A. Godbid and J. Playford, for the author,; 1682.
Rights/Permissions: To the extent possible under law, the Text Creation Partnership has waived all copyright and related or neighboring rights to this keyboarded and encoded edition of the work described above, according to the terms of the CC0 1.0 Public Domain Dedication (http://creativecommons.org/publicdomain/zero/1.0/). This waiver does not extend to any page images or other supplementary files associated with this work, which may be protected by copyright or other license restrictions. Please go to http://www.textcreationpartnership.org/ for more information.
Subject terms: Oughtred, William, 1575-1660 -- Early works to 1800.; Scientific recreations -- Early works to 1800.; Sundials -- Early works to 1800.; Mathematical instruments -- Early works to 1800.
Link to this Item: http://name.umdl.umich.edu/A67225.0001.001
Cite this Item: "The description and uses of the general horological-ring: or universal ring-dyal Being the invention of the late reverend Mr. W. Oughtred, as it is usually made of a portable pocket size. With a large and correct table of the latitudes of the principal places in every shire throughout England and Wales, &c. And several ways to find a meridian-line for the setting a horizontal dyal. By Henry Wynne, maker of mathematical instruments near the Sugar-loaf in Chancery-lane." In the digital collection Early English Books Online. https://name.umdl.umich.edu/A67225.0001.001. University of Michigan Library Digital Collections. Accessed May 13, 2025.

Pages

Example 5.

Let the Declination be 12 d. 15 m. South, and the Meridian Altitude 39 d. 40 m. the Lat. would be 38d. 5 m. Note that these Rules hold good only for finding the Latitudes of such places as ly to the North of the Aequinoctial, for South Lat. the contrary are true, for there if the declination be North, you must add it as you do now when it is South, and if the Suns Declination be South, you must subtract it as you do here when it is North.

And least it be thought troublesome to find the Lat. there is added at the end of this Book a Table of the Latitudes of the principal Places in England, Scotland, and Ireland. So that being near any of those places you may make use of the Lat. of that place, for 10 or 20 miles in this case will make a very insensible or no Alteration.