Asks about Fuegian specimens stored at the Geological Society. CD needs them soon.

Arranges a time for visiting HF.

Arranges to call on correspondent and bring some shells.

Sends specimens of a Tertiary sandstone from Tierra del Fuego in which there are leaves; CD thought they were beech. What is JDH’s opinion?

Asks whether JDH can make sense of a note on silicified wood.

Has read Vestiges [of creation (1844)]; "his geology strikes me as bad, & his zoology far worse".

Would like to see lists [of plants] from Society and Sandwich Islands.

Doubts JDH’s information regarding imagination of mother affecting offspring.

Has read CHS’s paper, "Original population of America" [Edinburgh New Philos. J. 38 (1844–5): 1–20], and is eager to know reference for the account of a "ruined city in the Caroline Group", indicating that the land has subsided. Refers to his own subsidence hypothesis in his work [Coral reefs].

Would like copy of "Galapagos flora" when published ["Plants of the Galapagos Archipelago", Trans. Linn. Soc. Lond. 20 (1851): 163–233].

Will keep JDH’s Pacific island notes till his return.

Would like sketch returned [see 775].

Would be particularly thankful for result of CGE’s observations on earth of Pampas.

Asks that Ernst Dieffenbach return copperplate and woodcuts.

Discusses extract sent by CHS dealing with island of Pouynipéte. Agrees account of island by Lloghtsky [Johann Lhotsky] is suspect.

Comments on view that former migration of animals, plants, and man was by continental extensions now submerged.