The description and use of a portable instrument, vulgarly known by the name of Gunter's quadrant By which is perform'd most propositions in astronomy; ... To which is added, the use of Nepiar's bones ... By William Leybourn. The third edition, with the addition of the use of Gunter's quadrant in taking the declination of a plain ... By Charles Leadbetter.
Leybourn, William,1626-1716.
London : printed for J. Wilcox,
1731 [1732]
'The art of numbring by speaking-rods, vulgarly termed Nepier's bones' has separate pagination, and titlepage dated 1732; the register is continuous.
ESTC