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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HF/1/3/2/15/34" 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 N G Heatley (Rahway)</dc:title>
  <dc:description>Thanks for penicillin - hopes Heatley had received sample of their best penicillin - discusses a sample of Meyer's crystalline material - are publishing in full the purification methods and chemistry done before joining with ICI - discusses results of blood tests done on people working on the extraction process - gives details of improvements to the assay method - discusses other moulds producing antibacterial substances and penicillic acid - have devised process which gets over emulsion difficulties - hopes there will be pooling of information with ICI - is getting some material from ICI - getting material of 110u/mgm from steep liquor after one passage through the alumina column.</dc:description>
  <dc:date>13 April 1942</dc:date>
</rdf:Description>