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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/MA/253/19" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Memorandum on the horizontal force magnetometer in use at the Madras Observatory, India, by Samuel Owen Edgar Ludlow</dc:title>
  <dc:description>On adjustments to the instrument since 27 May 1842.

Headed 'Horizontal Force Magnetometer' and signed by S.O.E. Ludlow, as Superintendent of the Observatory.</dc:description>
  <dc:date>15 January 1845</dc:date>
</rdf:Description>