The key of the mathematicks new forged and filed
Subtitle: together with a treatise of the resolution of all kinde of affected aequations in numbers : vvith the rule of compound usury, and demonstration of the rule of false position : and a most easie art of delineating all manner of plaine sun-dyalls
By: geometrically taught by VVill. Oughtred
Contributors: Wood, Robert, 1622?-1685; Whitaker, Richard, publisher; Harper, Thomas, printer
Series: Early English books, 1641-1700 -- 1023:12.
Publisher: Printed by Tho. Harper for Rich. Whitaker ...
Published: 1647
Place of publication: London
Language: eng
Number of pages: 174
Subjects: Mathematics; Early works to 1800; 1647
Other titles: Most easie way for the delineation of plain sun-dials.; Arithmeticae in numeris et speciebvs institvtio.
Work titles: Clavis mathematicae
Notes: First English edition.

The first Latin edition was published in 1631 under title, "Arithmeticae in numeris et speciebus institutio: quae tum logisticae, tum analyticae, atque adeo totius mathematicae, quasi clavis est." Translated in greater part by Robert Wood as is stated in the preface to the 1652 Latin edition.--Cajori, Florian.  William Oughtred. 1916. p. 17-18.

Errata: p. [12].

"A most easie way for the delineation of plaine sun-dials, only by geometry, without any trigonometricall calculation ..." has caption title and separate paging.