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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/MS/257/1/379" 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 Ralph Copeland, Blackburn to Edward Sabine</dc:title>
  <dc:description>Copeland informs Sabine that he does not currently have any books or papers with him, but suggests the number 1.372 represents the force in London for the date of Gauss' and Weber's Atlas of Geomagnetism. Suggests they require the absolute force at Kew in British units for the date of the atlas to compare with 1.372. Lord Rosse recommends Copeland should go to Ireland.</dc:description>
  <dc:date>11 January 1871</dc:date>
</rdf:Description>