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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/10/64" 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 Alexander von Humboldt to Sir John Herschel, dated at Berlin</dc:title>
  <dc:description>Autograph letter signed by sender. Calling his attention to the works of J. C. Poggendorf and Guillaume Weber. Does he know of the ingenious work carried out at the Cape by C. F. Gauss and Weber?</dc:description>
  <dc:date>29 May 1838</dc:date>
</rdf:Description>