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A 546844

an

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THE GIFT OF

Mrs. Blanche Harley

EL EM ENTS

OF

G E O METRY:

CONTAINING

THE FIRST SÍX BOOKS OF EUCLID,

WITH A

SUPPLEMENT

ON THE

QUADRATURE OF THE CIRCLE AND THE GEOMETRY

OF SOLIDS;

TO WHICH ARE ADDED,

ELEMENTS

OF

PLANE AND SPHERICAL

TRIGONOMETRY.

BY JOHN PLAYFAIR, F. R. S. LOND. & EDIN.
Professor of Natural Philosophy, formerly of Mathematics, in the University of Edinburgha

FİRST PHILADELPHIA, FROM THE LAST LONDON EDITION, ENLARGED:

PHILADELPHIA:
PUBLISHED BY MAROT & WALTER,

No. 87, Market-street.
Printed at No. 24, Arch-street.-A. Walker, Agt.

1826.

QA
35
P722.
1826

.

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