Revd John Michell BD. FRS 1724-1793 geologist and astronomer. Rector of Thornhill 1767 - 1793. He experimented on magnetism and astronomy, also making a Torsion balance to weigh the world. His visitors here included Henry Cavendish, William Herschel, Joseph Priestley and John Smeaton.

Open Plaques on Flickr
See also...
Spudgun67 on Wikimedia Commons
sgwarnog2010 on Flickr
Peter Hughes on Flickr
Peter Hughes on Flickr
gnomonic on Flickr
Tim Ellis on Flickr
Nick Harrison on Flickr
Peter Hughes on Flickr
gnomonic on Flickr
chrisinplymouth on Flickr
David Grimshaw on Geograph
User:Ruhrfisch on Wikimedia Commons
Seo Mise on Geograph
chrisinplymouth on Flickr
Nick Harrison on Flickr
warrington.civsoc on Flickr PD 1.0