7

E 1
U CL

CL I D's
ELEMENTS

OF

GEOMETRY,
The First Six, the Eleventh and Twelfth

BOOK S;
в о о к

Translated into ENGLISH,

From Dr. GREGORr's Edition, LITHE

WITH

NOTES and ADDITIONS.

For the Use of the British YOUTH.

By E.

E. S T O N E.

The SECOND EDITION, with Additions.

Ptolemy, King of Ægypt, having asked Euclid whether there

was any other more compendious way of arriving at Geometry,
than by these his Elements, is said to have answered: M
είναι βασιλικήν ατραπόν επί γεωμετρίαν, There is no other way,
ar royal passage, to Geometry.

Proclus's Commentary upon Euclid's second book,

L O N D o N,
Printed for John RIVINGTON, in St. Paul's Church-Yard,

WILLIAM JOHNSTON, in Ludgate-street, and THOMAS
LONGMAN, in Pater-nofter-row.

M.DCC.LXY.