Licence: Public Domain Mark
Credit: Tonpsychologie. Source: Wellcome Collection.
Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.
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Licence: Public Domain Mark
Credit: Tonpsychologie. Source: Wellcome Collection.
Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.