An epitome of astronomy, with the new discoveries
 including an account of the eídouraníon, or transparent orrery

by William Walker

"An Epitome of Astronomy, with the New Discoveries" by William Walker is a scientific publication written in the late 18th to early 19th century. This book presents an overview of astronomical principles, including the solar system's workings, celestial bodies, and the laws governing their motions. It serves as a comprehensive guide to astronomy, aimed at educating readers about the universe and the recent discoveries of the time. In the book, Walker utilizes a unique teaching method through the Eídouraníon, a large transparent orrery designed to visually demonstrate celestial motions and phenomena such as the movement of planets, phases of the moon, and eclipses. The work intricately explains mechanisms behind tides, the solar system's structure, and the nature of comets while employing accessible language to ensure that even laypersons can grasp complex concepts. Additionally, the author ties his scientific explanations to philosophical reflections on the nature of the universe and its creator, providing readers with a profound contemplation of humanity's place within the cosmos.