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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/RBO/11/103" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>'Extract of a letter from Caspar Neumann to Dr Woodward'</dc:title>
  <dc:description>Concerns a preparation of a dye made from alum and sal alkali which is comparable to the colour of the flower Gentianella and might be used by painters as a substitute for ultramarine  - first created by Mr Frisch who lives in Berlin
Read to the Royal Society on "9 January 1723" [actually 1724]</dc:description>
  <dc:date>1724</dc:date>
</rdf:Description>