Evaluated with 30 trainees (age 12 - adult) was the Stereotoner (a chest-worn, ink print reading aid for the blind) in order to develop specialized instructional materials; coordinate a program of instruction; evaluate candidates, processes, and outcomes of training; and make available the basic course materials developed during the study. The output of the Stereotoner consists of ten separate tones activated according to the shape of the individual letters or numbers being sensed through a small, moving camera or probe. Ss found the auditory code difficult to learn and their ability to read various difficult formats to be limited. Following 54 hours of formal training average reading rates were four words-per-minute (WPM) with an average of 80% accuracy on isolated words; and with the addition of an 87-hour home study period, average reading rates increased to 7WPM but accuracy decreased to 66%. Results indicated that some blind persons can learn to read ink print materials with the Stereotoner; however, careful screening and selection for auditory discrimination ability and personal motivation is necessary. Products resulting from the project included a taped auditory selection test, a series of pre-training orientation tapes, a basic instructional manual, and a home study manual with tapes. (Results are tabulated and seven case studies are presented in detail. Approximately half of the document consists of such appended items as excerpts from the instructional manual and home study manual, criterion tests, and additional case studies.) (IM)