Mathematics.- [Briggs (Henry)] Trigonometria Britannica: sive de doctrina triangulorum libri duo, edited by Henry Gellibrand, first edition, woodcut diagrams, half-title, g1 small tear in lower margin slightly affecting numbers, slightly browned, new endpapers, contemporary calf, slightly marked, 2 corners repaired, rebacked in later morocco, gilt, folio, Gouda, Pieter Rammazeyn, 1633.

⁂ "After completing his calculation of logarithms of the natural numbers, Henry Briggs began the immense task of creating a table of sines, tangents, secants, logarithms of sines and logarithms of tangents. He completed the calculations but was not able to finish an introduction before his death. His friend Henry Gellibrand took on the task of finishing the preface and seeing the work through the press." - Tomash & Williams.