1) Instrument for spirit writing 
[phrenology] The Psychograph was a phrenology machine, invented and marketed by Henry C. Lavery in the early part of the 20th century. The psychograph claimed to mechanically discern a subject`s aptitudes in a number of mental faculties. It was designed to measure the person`s head according to the principles of phrenology. Lavery patented ...
instrument that supposedly records spirit messages
(from the article `Bradford, Gamaliel`) biographer who cultivated `psychography,` a new type of biographical writing that sought to portray the inner life of the subject by a skillful ...
(si´ko-graf) a chart for recording graphically the personality traits of an individual. a written description of the mental functioning of an individual.
psychograph 1. A chart that lists personality traits. 2. A history of the personality of an individual.
a graph indicating the relative strength of the personality traits of an individual. · a psychologically oriented biography.