<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/RB/1/10/46" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Fragment of the original version of 'Usefulness'.</dc:title>
  <dc:description>MS version of section of text on experiments with aqua fortis, partly published in section V of Essay X, partly unpublished (in order 64, 63).\r\nHand: rounded 1650s</dc:description>
  <dc:date>1650s or early 1660s</dc:date>
</rdf:Description>