<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/20/76" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Copy of draft letter, from Sir John Herschel to David Brewster</dc:title>
  <dc:description>Copy of draft letter, copied as part of the correspondence project led by Colonel John Herschel FRS following the death of his father. Sends paper on deviation of tints. Comments on findings. Encloses crystals of carbonate of lime, which exhibits the system of rings. Regarding his own paper on Mother of Pearl and his indebtedness to David Brewster. Comments on nomenclature for light.</dc:description>
  <dc:date>24 November 1819</dc:date>
</rdf:Description>