CD seeks to decline the Secretaryship [of the Geological Society] by citing his obligation to FitzRoy to write his volume of the narrative of their expedition. His youth, inexperience, and ignorance of English geology.

Finished going over his geological specimens at Cambridge, and is now in London.

Describes his plans for writing the journal, and later the geology and zoology of the Beagle voyage.

Would have had great pleasure in accepting CB’s invitation, "whether for beauty or for shells", but has another engagement.

“The Botanists” and “The learned Linguists” give thanks for book and assistance.

Recommends David Williams’ paper on raised beaches of Devon [David Williams, "Letter … on the raised beaches of Barnstaple", Trans. Geol. Soc. Lond. 2d ser. 5 (1840): 287–8] be shortened and published immediately after Sedgwick’s and Murchison’s paper ["Description of a raised beach in Barnstaple", ibid., pp. 279–86] as chief point of paper is to support their conclusions.

Publication plans for the account of the Beagle expedition – CD to have the third volume for his journal.

News of naturalists and their interest in his specimens. Queries about plant specimens, including one on whether seeds from Keeling Island would endure salt water.