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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/14/115" 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 Richard Anthony Proctor to Sir John Herschel, dated at 5 Trigon Road, Kennington</dc:title>
  <dc:description>Autograph letter signed by sender. Accepts John Frederick William Herschel's objection to his method of measuring stellar diameters. Quotes an argument he had published suggesting the existence of a hierarchy of systems in an infinite universe. Discusses his studies of the relation of proper motions to the sun's motion. Asks John Frederick William Herschel's permission to publish John Frederick William Herschel's idea that some nebulae may be 'miniature' of the Milky Way.</dc:description>
  <dc:date>22 August 1869</dc:date>
</rdf:Description>