Originally published in 1859, this early work by English Mathematician
Isaac Todhunter is both expensive and hard to find in its first edition.
It contains a wealth of information on spherical trigonometry and
includes chapters on Geodetical Operations, Polyhedrons, Spherical
Geometry and much more. This fascinating work is thoroughly recommended
for all students of mathematics looking to advance their knowledge of
the subject. Many of the earliest books, particularly those dating back
to the 1900s and before, are now extremely scarce. We are republishing
these classic works in affordable, high quality, modern editions, using
the original text and artwork.