|Thackray Medical Museum holds extensive audiology collections and stethoscopes: objects to amplify the voices of others and the body’s interior pulses and murmurs. Murmur used a system of 'Chinese whispers' - sending automated recordings around a small chain of now-passive listening aids. Crackles and whispers passed back and forth. The voice was manifested as both physical and ephemeral. These devices included Queen Victoria’s silver dome-shaped hearing aid and Mr Gladstone’s black shell-type hearing aid.