IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. These paper slides for a stereoscope ...

THIS book covers the ground of the first six books and those parts of the eleventh and twelfth books of Euclid which are usually read; and it includes besides a discussion of the elementary properties ...

THIS book is a sequel to “Euclid Revised” by the same author. It consists of one hundred pages, divided into three chapters and an appendix. The first chapter is devoted to the discussion of planes ...