The line of proportion or numbers, commonly called Gunter's line made easie
Subtitle: 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: by William Leybourn
Series: Early English books online; Early English books, 1641-1700 -- 766:29
Publisher: Printed for Hannah Savvbridge ...
Published: 1684
Place of publication: London
Language: eng
Number of pages: 153
Subjects: Slide-rule; Astronomy; Early works to 1800; Mathematics; Navigation
Notes: Advertisement: prelim. p. [6] and p. [1]-[2] at end.

The first ed. was pub. in 1667, by G. Sawbridge.

Wing L1921