The 2nd of 3 vols. by Prof. Marshall Clagett on Ancient Egyptian Science. Contents: Part I: Intro. to Egyptian Calendars; Parker’s Account of the Old Lunar Calendar; The Later Lunar Calendar; The Origin of the Civil Calendar; Sothic Dates & the Ebers Calendar; The Night Hours; Decanal Clocks; Transit Decanal Clocks; The Ramesside Star Clock; Outflow Water Clocks; Inflow Water Clocks; Shadow Clocks; Egyptian Sundials; Traces of a 24-hour Day with Equal Hours; Astronomical Ceilings & Other Monuments; The Ceiling of the Secret Tomb of Senmut; The Vaulted Ceiling of Hall K in Seti I’s Tomb; Egyptian Zodiacs. Part II: Documents. Part III: Bibliography & Indexes. Part IV: Illustrations.