# Author:Richard Jack

## WorksEdit

*Elements of Conic Sections in Three Books, in Which Are Demonstrated the Principal Properties of the Parabola, Ellipse, and Hyperbola*(external scan) (1742)*The Mathematical Principles of Theology, or, The Existence of God Geometrically Demonstrated in Three Books...*(external scan) (1747)*Euclid's Data, Restored to Their True and Genuine Order, Agreeable to Pappus Alexandrinus's Account of Them, in His Preface to the Seventh Book of His Mathematical Collections*(external scan) (1756)

**public domain** worldwide because the author died at least 100 years ago. Translations or editions published later may be copyrighted. Posthumous works may be copyrighted based on how long they have been published in certain countries and areas.