Euclidian Geometry is a comprehensive textbook written by Francis Cuthbertson and first published in 1874. The book is a detailed study of the principles of Euclidean geometry, which is the study of geometric shapes and their properties based on the work of the ancient Greek mathematician Euclid. The book covers a wide range of topics, including lines, angles, polygons, circles, and solid geometry. It also includes discussions of geometric transformations, such as translations, rotations, and reflections, as well as the properties of triangles, quadrilaterals, and other geometric shapes. Throughout the book, Cuthbertson provides clear explanations of the concepts and theorems of Euclidean geometry, along with numerous examples and exercises to help readers understand and apply the material. The book is suitable for students of all levels, from high school to college, as well as for anyone interested in the history and development of mathematical thought. Overall, Euclidian Geometry is a classic work that remains an essential reference for anyone interested in the study of geometry and its applications.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.