Adds comments to a list of Cape of Good Hope plants which are also European and gives some additions to the list [see Natural selection, p. 552].

Urges CD to publish his theory with small part of data.

Corrects names of land shells on list of shells picked up at Down.

Discusses transport of Ancylus from one river-bed to another by water-beetle.

"I hear that when you & Hooker & Huxley & Wollaston got together you made light of all Species & grew more & more unorthodox."

Mentions discussion of old Atlantis by Oswald Heer.

Comments on Helix and Nanina.

Mentions beetle discovered with small bag of eggs of water-spider under wing.

Madeira evidence favours single species birth-place theory.

Proportion of molluscan species to genera in various periods. The difficulty of determining species increases with the number of species per genus. Identifying species within a genus is most difficult in that period in which the genus shows its greatest development.

The vaunted fidelity of the ark bird has its exceptions.

Gives some details on wild pigeons.

Answers in the affirmative CD’s query about drifted trees.

Non-endemic Ascension Island plants brought by man, not wind-transported.

Bentham has found intermediates between oxlip and cowslip in Herefordshire.

JDH finds quantity of albumen in seeds is not variable within a species.

Lyell urges CD to publish a sketch of species theory; CD asks JDH’s opinion on best course.

Concerned about opposition, particularly by Owen, to Huxley’s admission to Athenaeum.

CD is unsure about JDH’s recommendation that he publish a separate "Preliminary Essay". It is unphilosophical to publish without full details.

CD will work for Huxley’s admission to Athenaeum.

Huxley’s "vehement" [Royal Institution?] Lectures make it difficult to propose him for Athenaeum.

Extensive notes on Madeiran birds: when and where seen on the island and under what conditions.

No summary available.

No summary available.