<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/4/249" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Draft letter, from Sir John Herschel to David Brewster</dc:title>
  <dc:description>Draft letter. 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>