Draft manuscript of John S. Rinehart's final work, Lunar Influence on Geophysics and Archaeology:Studies of Long Period Lunar Cycles, which he completed writing shortly before his death in 1999. This book, which has not been published, is described by Rinehart in the Preface: Almost all of my previous published writings have been nonspeculative, scientific expositions based on good hard facts. This book...also contains a great deal of sheer speculation. I visited the Konso region in Ethiopia in January 1994 where I discovered their use of an 18 year-long generation-grading system.... Primarily to satisfy my curiosity about a probable relationship among the Konso generation-grading system, the astronomical alignments found in the structures left by ancient people, and my own research on the influence of the moon on geophysical events, I felt compelled to develop a personally satisfying scenario regarding cause and effect relationships.