1

MATHEMATICAL INSTITUTIONS.

In Three P A R T S.

I. CL AVIS (

KEY

, II. ANU A The G A TE,

T , III. ANCILLA) HAND-MAID

TO THE

Michoniticil Sciences,

WHEREIN, The Doctrine of Plain and Spherical TRIANGLES,

is Succinctly Handled, Geometrically Demonstrated, Arithmetically, Geometrically, Instrumentally Performed ;

And Practically Apply'd to Ġ É O METRY, (SC

SCIOGRAPHIA, COSMOGRAPHY, NAVIGATION,

, And T H E O R I ES , of the P L A N E T S.

GEOGRAPHY S2

By WILL ZEIBOURN, Philom.

Ingredere nt Proficias.

LONDON Printed for Rcb. Filing, at the White Swan in St. Paul's Church- u.