""An Introductory Treatise On The Lunar Theory"" is a book written by Ernest W. Brown and published in 1896. The book is a comprehensive introduction to the study of the moon's motion and the mathematical principles that govern it. The author provides a detailed analysis of the lunar theory, including the effects of the sun's gravity and the earth's rotation on the moon's orbit. The book is divided into several chapters, each of which covers a different...