<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/EL/L4/48" 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 Antoni van Leeuwenhoek to Heinsius, dated at Delft</dc:title>
  <dc:description>Leeuwenhoek has signed his copy of the original letter
Observations of the muscle fibres of whales
No original figures now exist
EL/L4/51 for covering letter
English translation see EL/L4/52</dc:description>
  <dc:date>1712</dc:date>
</rdf:Description>