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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/MS/257/5/62" 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 Welsh, Kew Observatory to Edward Sabine</dc:title>
  <dc:description>Regarding the results for the induction coefficient of the Toronto magnet. Includes a table depicting the corrections and corrected ‘x’ values for each year from 1845 to 1852. Welsh has measured the magnet and includes its half-length. Welsh asks Sabine to send him the apparatus used by Jones to measure the inertia rings and the original values for the Toronto ring.</dc:description>
  <dc:date>20 January 1857</dc:date>
</rdf:Description>