<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/11/233" 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 Joseph Johann Littrow to Sir John Herschel, dated at Vienna</dc:title>
  <dc:description>Autograph letter signed by sender. Sending his book on Theoretical and Practical Astronomy. Also sends books for Thomas Catton. Comments on some of the varying observations made at observatories.</dc:description>
  <dc:date>26 June 1821</dc:date>
</rdf:Description>