The Azoic System: And Its Proposed Subdivisions is a book written by Josiah Dwight Whitney in 1884. The book focuses on the geological period known as the Azoic era, which is characterized by the absence of visible fossils due to the lack of life forms during that time. Whitney proposes subdivisions within the Azoic era based on the rock formations and structures found in various regions. The book includes detailed descriptions of these subdivisions...