On testing the hearing with high and low notes in diseases of the ear / by Albert A. Gray, M.D., F.R.S.E., Aural Surgeon to the Glasgow Central Dispensary.

Public Domain Mark

You can use this work for any purpose without restriction under copyright law. Read more about this licence.

Credit

On testing the hearing with high and low notes in diseases of the ear / by Albert A. Gray, M.D., F.R.S.E., Aural Surgeon to the Glasgow Central Dispensary. Public Domain Mark. Source: Wellcome Collection.

Provider

This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.