LAMB DALLAR

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Dean's Stereotype Edition.

ELEMENTS

OF

GEOMETRY:

CONTAINING

THE FIRST SIX 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 SPHERICALE

TRIGONOMETRY.

BY

JOHN PLAYFAIR, F.R.S. LOND. & EDIN.

PROFESSOR OF NATURAL PHILOSOPHY, FORMERLY OF MATHEMATICS, IN THE
UNIVERSITY OF EDINBURGH.

FROM THE LAST LONDON EDITION, ENLARGED.

e

PHILADELPHIA:

J. B. LIPPINCOTT & CO.
1856.