Title:Mr. William Oughtred's Key of the mathematicks ;:newly translated from the best edition, with notes, rendring it easy and intelligible to less skilful readers : in which also, some problems left unanswer'd by the author are resolv'd : absolutely necessary for all gagers, surveyors, gunners, military officers, mariners, &c : recommended by Mr. E. Halley, Fellow of the Royal Society.
Note: - Translated by E. Halley, who has signed the pref.
- Errata: p. [4] of preliminary sequence.
- Translation from the Latin.
- ULL copies are from the library of Augustus De Morgan. Inscription on p. 1 of copy 1: "Geo. Sibley, 1818".
- ULL copy 1 is bound in half calf and cloth. ULL copy 2 is bound in speckled calf, with title and imprint on morocco labels on spine.
- DOI: 10.1163/9789004460409_MOR2-b20770856