Sends to CD, as Secretary of the Geological Society, his work on fossil shells ["Mémoire sur les coquilles fossiles", Actes de la Société Linnéenne de Bordeaux 10 (1838): 92–152].

A newly-elected Fellow returns the obligation to be signed upon entering the Geological Society.

Supports John Lawrance’s application to become a fellow of the Geological Society.

Sends fee for admission to the Geological Society and a signed obligation.

Thanks for copies of the Proceedings of the Geological Society of London, with a request for items (listed) missing from their set.

Offer to supply, if they can, any copies missing from the Geological Society’s run of the American Journal of Science.

A newly-elected Fellow sends a signed obligation and subscription to CD as Secretary of the Geological Society of London.

Discusses CD’s Glen Roy paper; would like to see the theory put beyond dispute. Tells of Mr Stables’ observations on the parallel roads. Discusses geological features of Scotland which he is sure are marine in origin.

Requesting information about membership of the Geological Society of London.

Sends an ammonite from the Upper Lias, which has Balanus-like bodies on surface. He wants CD’s interpretation. Discusses possible function of aptychi, siphuncular tube, and operculum in ammonites.