The Errors, by which Theon, or others, have long ago Vitiated

these Books, are Corrected,
And some of Euclid's Demonstrations are Restored.

BY
ROBERT SIMSON, M. D.
Emeritus Professor of Mathematics in the University

of Glasgow.

QA 451

,S6
1762

SION COLLEGE

LIBRARY.

SOLD BY ORDER OF THE

PRESIDENT AND GOVERNORS 1934.