[This chart was made available at “The Anatomy of the Spirit of Man Congress”, 3-6 June 1955, in Washington, D.C. L. Ron Hubbard describes the use of this chart in Lecture 5506C04 ASMC-5 The Tone Scale-Three Primary Buttons of Exteriorization. He gives further data in Lecture 5506C05 ASMC-9 The Descent of Man and Lecture 5506C05 ASMC-10 How to Chart the Preclear Knowingness and Unknowingness.]