<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/17/258" 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 William Henry Fox Talbot to Sir John Herschel, dated at 31 Sackville St.</dc:title>
  <dc:description>Autograph letter signed by sender. Comments on use of muriate of lime on plants. Also on existence of unexplained bands on film and on presence of red light beyond normal spectrum with light originating from certain sources.</dc:description>
  <dc:date>12 January 1826</dc:date>
</rdf:Description>