CAMBRIDGE: AND SOLD ALSO BY DEIGHTON AND SONS, CAMBRIDGE. 1816. OKN Cressi CONTENTS. Page ......... On the Mutual Contact of Circles in a Sphere.......... .102 On the Comparison of Spherical Surfaces with one another.........141 On the Principles of Plane Trigonometry...... .165 On the Investigation of such general Propositions as are applicable to the purposes of Spherical Trigonometry........ ........193 On the Solution of Right-angled and Quadrantal Spherical Tri- angles......... .216 On the Solution of oblique-angled Spherical Triangles.................229 On the Computation of Spherical Surfaces........ .244 On the Formation of a Technical Memory for the Spherical Trigonometry..... purposes of ...............252 On the Solution of Spherical Triangles by Geometrical Construc- tions. .....262 ? |