<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/18/303" 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 John Wrottesley to Sir John Herschel, dated at Wrottesley [Staffordshire]</dc:title>
  <dc:description>Autograph letter signed by sender. Gives probability formula used to determine weights of stars 3 and 35 [see John Frederick William Herschel's 1860-11-2]. Explains calculation procedures previous to 1856 and those used since 1857.</dc:description>
  <dc:date>7 November 1860</dc:date>
</rdf:Description>