Autograph letter signed.
8vo. 1 page on bifolium.
To an unidentified acquaintance, inviting him to a lecture: "Would you not like to hear Professor Huxley [probably the English biologist and anthropologist Thomas Henry Huxley, 1825-95] lecture? He is to give us a Discourse here tomorrow evening on a most interesting subject, and if you would come at a quarter before 9 o'clock and ask the porter who stands on the stair-case and collects the tickets to show you up to the library. I will join you there soon afterwards. Count on my desire to do every thing in my power to render your stay in London agreeable [...]".
On stationery with engraved emblem of the Royal Institution of Great Britain.