| Description | [Letter of introduction for John Dalton. Returning two of Gregory's letters, as requested. Davy has promised to look for any letters he has].
With two enclosures:
b) Letter. Gregory Watt (Bath) to William Henry (Manchester). 25 July 1804
[His state of health. Needs phosphoric acid for his experiments. Cannot find his copy of Campbell's verses. Theory about Strontia].
c) Letter. Gregory Watt (Bath; 7 Queens Parade) to William Henry (Manchester). 04 August 1804
[Phosphoric acid. Opinion on vitrification]. |