| Author |
Leybourn, William, 1626-1716.
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| Title |
The line of proportion or numbers, commonly called Gunter's line made easie : by the which may be measured all manner of superficies and solids as boards, glass, pavement, timber, stone, &c. : also, how to perform the same by a line of equal parts, drawn from the centre of a two-foot rule : whereunto is added, The use of the line of proportion improved : whereby all manner of superficies and solids may both exactly and speedily be measured, without the help of pen or compasses, by inspection, looking only upon the ruler / by William Leybourn. |
| Publication Info |
London : Printed for A. and J. Churchill, 1698. |
| Edition |
The sixth edition carefully corected and other news ways of measuring / added by the author. |
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