A self-published treatise on trepanation by a member of the Dutch Provo who had experienced the act firsthand. On January 6, 1965, Huges famously self-trepanated himself in a square in Amsterdam, drilling into his own head with a (Black & Decker ?) drill. Huges had studied as a medical student, where he developed the belief that since mankind began to walk upright our heads have been starved of oxygen; he believed that by trepanning, one could achieve a permanent high, bringing his actions into the psychedelic trajectory and influencing a select cadre of auto-trepanationists who have sought freedom from the boundaries of the skull. Very rare documents.