A newly-elected Fellow sends a signed obligation and subscription to CD as Secretary of the Geological Society of London.
Absence from town has prevented me acknowledging earlier your letter of the
In pursuance with your letter I beg to enclose the Obligation signed by me, and have written above an order for the amount of my entrance & subscription which I shall feel obliged by your handing to the Treasurer whose address I am ignorant of
I am Sir | yr very obed
Charles Darwin Esq