To the Geological Society of London 31 January 
12 Upper Gower St
I have to attend as auditor of accounts at the Geographical Society at ten oclock tomorrow.1 I understand that this will probably not detain me more than an hour, so that I hope to be able to meet the other members of the Museum Committee2 a very little after eleven oclock.
I remain | Sir | Your obedient servant | Charles Darwin
Hopes to meet with museum committee after 11 o’clock next day.