Magical Bulletin Of The Magical Shop Of The West, January 1915 December 1917 (1917)
Floyd Gerald Thayer · leaf 48
Furthermore, the performer can be among the audience during the entire demon- stration, and the names whispered to him, whereupon the machine instantly responds with the correct selection. Members of the audience can be invited upon the stage to assure themsclves that the sound really comes from…
