<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/20/149" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Copy letter, from Sir John Herschel to Charles Babbage</dc:title>
  <dc:description>Copy of letter, copied as part of the correspondence project led by Colonel John Herschel FRS following the death of his father. Query regarding the construction of a model of a machine for Charles Babbage. Charles Babbage's letter to Humphry Davy about his engines. He will be visiting the Netherlands shortly. P. S. Laplace has sent him details of his recent researches into gases. Hopes the family are well after their recent visit to Devon.</dc:description>
  <dc:date>31 July 1822</dc:date>
</rdf:Description>