Autograph letter signed.
1 p. on bifolium with integral address panel. 4to.
To the mathematician and engineer Davies Gilbert (1767-1839, then still Davies Giddy): "Dear Sir, I have reveiced your letter, & am sorry my note of last Saturday did not reach you in time. I now acquaint you that the Visitors of the Royal Observatory dine at the Green Man, next Friday, the 6th instant, two days hence, where your company & your father's will be agreeable, if it shall suit you. I look forward to having the pleasure of your company & your father's some to day to spend here. But am engaged next Monday. Next Friday Sennight the 13th instant our club at the Globe will meet again, & we expect Baron Maseres to attend, where your company & your father's will be agreeable to dine at five o'clock [...]".
Traces of old folds; address leaf shows traces of opened seal.