<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/2/362" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Letter, from Sir John Herschel to Charles Babbage</dc:title>
  <dc:description>Autograph letter signed by sender. Cannot accompany Charles Babbage to Deptford because John Frederick William Herschel busy with James South. Mentions the 'Pearsonian dinner,' 'plagi[h]edral' crystals, and a letter by Wilhelm Olbers.</dc:description>
  <dc:date>1819 [?]</dc:date>
</rdf:Description>