De sectore et radio. The description and use of the sector in three bookes. The description and use of the Crosse-Staffe in other three bookes. For such as are studious of mathematicall practise. London: Printed by William Jones, and are to be sold by John Tomson at his house in Hosier-lane, 1623. [Bound with:] ibid. Canon Triangulorum or Tables of Artificiall Sines and Tangents. London: Printed by William Jones and are to be sold by Edmund Weaver, 1623.
London: William Jones, 1623. First edition, extremely rare complete as here, of Gunter’s book on the sector and other mathematical instruments, “one of the most influential scientific works on navigation” (Waters, p. 359), the work which introduced logarithms into the science of navigation and led to the development of the..... More