<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/5/311" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Draft letter, from Sir John Herschel to William Crookes, dated at Collingwood</dc:title>
  <dc:description>Draft letter. Sends spectra obtained by Ioduret of potassium. Gives details of his latest photographic experiments.</dc:description>
  <dc:date>30 August 1859</dc:date>
</rdf:Description>