Casey J. A Treatise on Spherical Trigonometry and Applications to Geodesy and Astronomy

Dublin: Hodges, Figgis & Co., 1889. — 165 p.The present Manual is intended as a Sequel to the Author's Treatise on Plane Trigonometry, and is written on the same plan. An examination of the Table of Contents, or of the Index, will show the scope of the work. It will be seen that, though moderate in size, it contains a large amount of matter, much of which is original.
The sources from which I have obtained information are indicated in the text. The principal are Crelle’s Journal "für die reine und angewandte Mathematik," Berlin, and Nouvelles Annales de Mathématiques, Paris.
The examples, which are very numerous (over five hundred) and carefully selected, illustrate every part of the subject. Among them will be found some of the most elegant Theorems in Spherical Geometry and Trigonometry.