| Description | 68a) 15 Oct. 1780. 2pp. Separate folded paper wrapper has been docketted by James Watt jr. with names of correspondents, date(s) of letter(s) and a summary of the contents. Less sanguine about Alkali scheme and Patent. Mr Keir's processes. Terra Ponderosa. Fabroni's Solvent of Caoutchouc. Requests his acceptance of a Copying Machine. Mr Boulton in Cornwall. Prospects there. Complaints of ill health.
68b) 25 Oct. 1780. 2pp. On Copying Machines and Copying Ink. Income from Cornwall. (Partners no. 71 and 73) |