Method of measuring angles with a cross-staff. From Edmund Gunter "The Description and Use of the Sector", London, 1636 (1st edition 1626). Engraving

---

Size: 2326px × 3543px
Photo credit: © Photo12/Ann Ronan Picture Library / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., /, 1636, angles, cross-staff, cross-staff., description, edmund, engraving, gunter, instrument, london, measuring, method, scientific, sector, surveying