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