The compleat surveyor containing the whole art of surveying of land by the plain table, theodolite, circumferentor, and peractor ... : together with the taking of all manner of heights and distances, either by William Leybourn.

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Title: The compleat surveyor containing the whole art of surveying of land by the plain table, theodolite, circumferentor, and peractor ... : together with the taking of all manner of heights and distances, either by William Leybourn.
Author: Leybourn, William, 1626-1716.
Publication: London :: Printed by R. & W. Leybourn, for E. Brewster and G. Sawbridge ...,; 1653.
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: Surveying -- Early works to 1800.
Link to this Item: http://name.umdl.umich.edu/A48331.0001.001
Cite this Item: "The compleat surveyor containing the whole art of surveying of land by the plain table, theodolite, circumferentor, and peractor ... : together with the taking of all manner of heights and distances, either by William Leybourn." In the digital collection Early English Books Online 2. https://name.umdl.umich.edu/A48331.0001.001. University of Michigan Library Digital Collections. Accessed June 19, 2025.

Pages

CHAP. IX. Of Instruments for Reducing of Plots.

FOr the reducing of Plots from one forme to another, there hath been divers Instruments invented by divers men. One that performeth that work very well, is a Ruler, having fix∣ed at each end thereof a Semicircle divided into degrees, and another Ruler having two Semicircles to move thereon, upon the centers of all these Semicircles there are thin rulers of Brasse to move from angle to angle of your Plot: but the manner of working by these Semicircles being very tedious, I passe it over. Another way is by having certain proportionall Scales upon one and the same Ruler as Master Rathborn describeth, but this I shall also wave, and likewise that which I described in Planometria, as being too particular The best and most absolute is a Parallelogram, the making whereof is well known to the In∣strument-maker.