Letter from Robert Rawson of 84 Great Ducie Street, Manchester to Augustus De Morgan, [1845]. Covering note accompanying copies of a pamphlet On the summation of series ..., read before the Literary and Philosophical Society of Manchester on 12 Nov 1844. Describing his experiences working as a child coal miner. Proposes 'a new ... chymical theory'.

Autograph, with signature.

Papers relating to Percivall Pott, [1770-1792], comprising notes on his surgical lectures, taken by an unidentified pupil, [1770].