""Elements Of Natural Philosophy IV: Spherical Astronomy"" is a comprehensive book written by W. H. C. Bartlett. It is a part of a series of books that cover various aspects of natural philosophy. This particular book focuses on spherical astronomy, which is the study of celestial objects and their movements in the sky. The book covers a wide range of topics, including the celestial sphere, the motions of the sun, moon, and planets, eclipses, and the measurement of time. It also includes detailed explanations of astronomical instruments and their use. The book is written in a clear and concise style, making it accessible to both students and professionals in the field of astronomy. It is a valuable resource for anyone interested in learning about the science of astronomy and its practical 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.