﻿<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/18/352" 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 Thomas Young to Sir John Herschel, dated at 48 Welbeck St.</dc:title>
  <dc:description>Autograph letter signed by sender. Sends papers for the Royal Astronomical Society and A. J. Fresnel's papers. Modifies analogy of infinite pipes to clarify Thomas Young's hypothesis of three principal colors. Charles Babbage sent survey of Mont Cenis. Can John Frederick William Herschel find its barometrical observations?</dc:description>
  <dc:date>3 January 1823</dc:date>
</rdf:Description>