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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/CLP/14i/16" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Paper, 'The ptisan-drink' by Mrs Barcroft</dc:title>
  <dc:description>Mrs Barcroft describes the recipe for a ptisan [tisane] that can be used to treat scurvy. The drink includes China-roots, sarsaparilla, nephrite wood, and sassafras wood which are infused in boiling water. A small bag containing salep root, turbith [Operculina turpethum; morning glory], hermodacts, and tappissiac is then steeped in the resulting liquid to make the tisane. Cinnamon and senna are then added.

Subject: Medicine</dc:description>
  <dc:date>24 October 1672</dc:date>
</rdf:Description>