<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/DM/3/67" 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 P M Roget, Secretary, Royal Society, to Bontemps</dc:title>
  <dc:description>Concerning some portions of glass for optical purposes which Bontemps offered to the Optical Glass Committee and which were not found to be satisfactory.

With inserted note from Dollond expressing his dislike for Bontemp's disk.</dc:description>
  <dc:date>31 December 1828</dc:date>
</rdf:Description>