Mr. William Oughtred’s Key of the Mathematicks. Newly Translated from the Best Edition With Notes, Rendering it Easie and Intelligble 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.
London: Printed for John Salusbury, at the Rising-Sun in Cornhil, M DC XC IV [1694]. First edition in Halley’s translation. In somewhat later leather. Spine with red title vignette. With several charts and woodcut diagrams. (4), 208 p. First English edition in Edmond Halley’s translation of Oughtred’s classic work, Clavis..... More