"Hurrah For The Dredge!" - The Jeffreys Mollusca Collection
John Gwyn Jeffreys, a Swansea lawyer, was one of the 19th century's greatest naturalists.
His research into British molluscs and the collection of shells he built up is still the standard reference for scientists.
Learn about his life and work in this exhibition from Amgueddfa Cymru's Biodiversity Department.