<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/MS/257/4/270" 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 Balfour Stewart, Kew Observatory to Edward Sabine</dc:title>
  <dc:description>Stewart informs Sabine ‘the moment of inertia of R2 with its mirror and stirrup has been found’ by the method of rings. Includes temperature and induction coefficients for R² and R6. Refers to Mr Hogg, the observer at Makerstoun. Discussion regarding photographic apparatus.</dc:description>
  <dc:date>9 July 1860</dc:date>
</rdf:Description>