ELEMENTS OF GEOMETRY: CONTAINING THE FIRST SIX BOOKS OF EUCLID, WITH A SUPPLEMENT ON THE QUADRATURE OF THE CIRCLE, AND THE TO WHICH ARE ADDED, ELEMENTS OF PLANE AND SPHERICALE BY JOHN PLAYFAIR, F.R.S. LOND. & Edin. PROFESSOR OF NATURAL PHILOSOPHY, FORMERLY OF MATHEMATICS, IN THE FROM THE LAST LONDON EDITION, ENLARGED. D PHILADELPHIA: J. B. LIPPINCOTT & CO. 1856. |