Spherical Trigonometry

<p>I Great and Small Circles</p><p>II Spherical Triangles</p><p>III Spherical Geometry</p><p>IV Relations between the Trigonometrical Functions of the Sides</p><p>and the Angles of a Spherical Triangle</p><p>V Solution of Right-angled Triangles</p><p>VI Solution of Oblique-Angled Triangles</p><p>VII Circumscribed and Inscribed Circles</p><p>VIII Area of a Spherical Triangle. Spherical Excess</p><p>IX On certain approximate Formulæ</p><p>X Geodetical Operations</p><p>XI On small variations in the parts of a Spherical Triangle</p><p>XII On the connexion of Formulæ in Plane and Spherical Trigonometry.</p><p>XIII Polyhedrons</p><p>XIV Arcs drawn to fixed points on the Surface of a Sphere</p><p>XV Miscellaneous Propositions</p><p>XVI Numerical Solution of Spherical Triangles</p>