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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/PT/62/8/20" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Plate, two forms of spiral nebula observed in April 1855 by [William Parsons]</dc:title>
  <dc:description>Figure showing two possible forms of a spiral nebula observed by Parsons on 17 April 1855. The nebulae are drawn in graphite. The nebula corresponds to number 1002 in William Herschel's catalogue of nebulae.

Subject: Scientific Instruments / Astronomy

Published in Philosophical Transactions as 'On the construction of specula of six-feet aperture; and a selection from the observations of nebulæ made with them'.

Received by the Royal Society on 5 June 1861. Read 20 June 1861.</dc:description>
  <dc:date>[1861]</dc:date>
</rdf:Description>