AN

ELEMENTARY TREATISE

or

SPHERICAL GEOMETRY

AND

TRIGONOMETRY.

BY

ANTHONY D. STANLEY, A. M.,

PROFESSOR OF MATHEMATICS IN YALE COLLEGE.

REVISED EDITION

NEW HAVEN.

PUBLISHED BY HORACE C. PECK.

Entered according to Act of Congress, in the year 1848, By ANTHONY D. STANLEY,

In the Clerk's Office of the District Court of Connecticut.

Napier's Rules of the Circular Parts -

Oblique-angled Triangles

Bowditch's Rules for Oblique-angled Triangles

62

69

88

Limitations of value to which the parts of triangles are

subject

106

Select Formulæ for the Six Cases in the Resolution of