<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/MS/934/1/3/5" 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 J. Jonxis; Rijksstraatweg 65, 9752 AC Haren to Elsie Widdowson</dc:title>
  <dc:description>Concerns research into calcium levels. Includes a graph illustrating Jonxis's research.</dc:description>
  <dc:date>9 February 1992</dc:date>
</rdf:Description>