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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HF/1/3/2/9/16" 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 Howard Walter Florey to R D Coghill, Northen Regional Research Laboratory, Peoria</dc:title>
  <dc:description>Pleased Coghill's units (penicillin) seem to be the same as his - asks if Coghill is using the ring method of testing - dilution method gives higher reading with purer material - has extracted crystalline substance from Aspergillus fumigatus mut helvola - discusses penicllamine - ICI are getting good yields with lactose medium.
On verson of letter from Coghill to Florey, 26 March 1943.</dc:description>
  <dc:date>16 April 1943</dc:date>
</rdf:Description>