Portrait of Thomas Glass by John Opie, in the Royal Devon and Exeter Hospital (altered). Attribution: Wellcome Collection
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sources:
'Thomas Glass: Physician of Georgian Exeter' by Alick Cameron MD DHMSA
'The Impossible Zoo' by Leo Ruickbie
‘The Royal Devon and Exeter Hospital’ by J. Delpratt Harris M.D.
'Slither' by John Halkin