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Published online by Cambridge University Press: 11 May 2009
A comparative study of the state of preservation of hydromedusae has been made based on a collection that has been preserved for 80–90 years. A report has been compiled in tabular form concerning the state of the collection in relation to the present pH of the preserving fluid. Recommendations are made based upon which fixative and preserving fluids have proved to be best for long-term storage.