Establishment for the study of vocal physiology : for the correction of stammering, and other defects of utterance; and for practical instruction in "visible speech." / Conducted by Alexr. Graham Bell.

Licence: Public Domain Mark

Credit: Establishment for the study of vocal physiology : for the correction of stammering, and other defects of utterance; and for practical instruction in "visible speech." / Conducted by Alexr. Graham Bell. Source: Wellcome Collection.

Provider: This material has been provided by the Harvey Cushing/John Hay Whitney Medical Library at Yale University, through the Medical Heritage Library. The original may be consulted at the Harvey Cushing/John Hay Whitney Medical Library at Yale University.