[Letter] 1801 [Apr] 5, Manchester [to] John Fell, Ulverston / John Dalton. [Refers to his recent, non-scientific, work. Comments on recent developments in electricity and on Herschel's experiments on heat. Second page bears a pencil sketch [of an experiment with Leyden jars?] probably by Fell. Published in John Dalton: critical assessment of his life and science / Arnold Thackray, 1972, p.149-50]