| Description | Secretary's In Letters: from Ferdinand VON SOMMER, Batavia, 10 Dec 1848. Re: is sending, through John Henshall/Hanshall, an extensive number of rock, fossil and shell specimens from Southern and Western Australia; is seeking support for his and Henshall's plans for a further expedition to the Indian Archipelago. |
| Administrative History | Sommer spells his colleague's name differently throughout the letter. |