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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/NLB/47/833" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Copy letter from Robert William Frederick Harrison to J H Parsons</dc:title>
  <dc:description>'The portable colour vision testing apparatus referred to in my letter of April 16th, was mentioned as a suitable object for exhibition at the Soiree on May 7th. 
What I want to find out is, to whom should I apply for the loan of it. You are aware what we show at our Soiree in the way of instruments and adaptations. Our idea is to include, if agreeable, the apparatus in question.'</dc:description>
  <dc:date>18 April 1913</dc:date>
</rdf:Description>