<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HF/1/3/2/6/52" 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 a letter from N G Heatley to C G Pope, Wellcome Physiological Laboratory, Beckenham</dc:title>
  <dc:description>Gives details of assays of two samples of penicillin sodium salt (TRC 5 and 6)</dc:description>
  <dc:date>18 June 1943</dc:date>
</rdf:Description>