Oughtred, William, 1575-1660. **E.197.32
The key of the mathematicks new forged and filed: together with
a treatise of the resolution of all kinde of affected equations in
numbers. VVith the rule of compound usury; and demonstra-
tion of the rule of false position. And a most easie art of de-
lineating all manner of plaine sun-dyalls. Geometrically taught.
— London. Printed by Tho. Harper for Rich. Whitaker. 1647. (12), 174, 29 pp. Plates. Diagrams. Tables. 14 cm.,, in 8s.
This card was printed at the Boston = Public Library, June 1, 1932.
D402 — Sun-dials. — Mathematics.