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In which the Propositions are demonstrated in a new and

shorter Manner than in former Translations, and the
Arrangement of many of them altered,

To which are annexed

Plain and Spherical Trigonometry, Tables of Logarithms from

I to 10,000, and Tables of Sines, Tangents, and Secants,
Natural and Artificial.

BY

GEORGE

DOUGLAS,

Teacher of Mathematics in the Academy at Ayr.

E D I N B U R G H
Printed for the Author, and fold by C. Elliot, Edinburgh

and RICHARDSON and URQUHÁRT, London.

MDCC,LXXVI.