Licence: Public Domain Mark
Credit: Sound / by John Tyndall. Source: Wellcome Collection.
Provider: This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London)
6/494 (page 2)
Licence: Public Domain Mark
Credit: Sound / by John Tyndall. Source: Wellcome Collection.
Provider: This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London)