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
Edition: The sixth edition carefully corected and other news ways of measuring / added by the author.
Series: Early English books online
Publisher: Printed for A. and J. Churchill
Published: 1698
Place of publication: London
Language: eng
Number of pages: 168
Subjects: Measurement; Early works to 1800; Slide-rule; Mathematical instruments
Notes: Wing (2nd ed.) L1922