<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/7/131" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Incomplete draft letter, from Sir John Herschel to Friedrich Wilhelm Rudolph Engelmann, dated at Collingwood</dc:title>
  <dc:description>Draft letter, incomplete. Thanks for the valuable series of measures of double stars. Regarding John Frederick William Herschel's method of calculating the orbit of a double star, which RE seems to have misunderstood.</dc:description>
  <dc:date>12 December 1864</dc:date>
</rdf:Description>