33

CROSSSTA FEN

In Three BO ORS:f The Firſt, üContaining its Deſcription, and the Uſe thereof intaking of Heights and Diſtances.The Second,

Contains the Uſe of the Lines thereon in the Meaſuringof all manner of Superficies, and Solids, as Board,Glaſs, Land, Timber, Stone, and Gauging of Veſſels,as alſo in the famous Art of NAvIGAT TON.

The Third, 3

Contains the Uſe of the Lines of Numbers, Sines,and Tangents in Dialling, an Excellent andCompendious TR ERATTS E, fully teaching, andamply explaining the Grounds and Reaſons thereof,from a Projection of the Sphere in Plano.

To which is added,

An Ar YEN DIx, containing the Deſcription and

i Uſe of a ſmall Portable Quadrant, for the more eaſieflinding the Hour and Azimuth, and other SolarConcluſions of more frequent Uſe.

3 By Eamund unter.

LONDON.

—

Printed by A. C. for Francis Eglegfield, and are to he ſold at

the Marigold in St Pauls Church-yard. 1673.