<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/RB/2/17/8" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Two advertisements, perhaps for 'Exp &amp;  Obs. Physicae'.</dc:title>
  <dc:description>Apparently intended for unpublished 'Mechanical Origin of Flame' and 'Mechanical Origin of Light'.\r\nHand: Bacon, marginal add. by C</dc:description>
  <dc:date>c 1690</dc:date>
</rdf:Description>