Urges JDH to work his essays into a book.

CD’s historical sketch ends with JDH’s introductory essay to Flora Tasmaniae.

Huxley’s Royal Institution lecture on Origin [10 Feb 1860, Not. Proc. R. Inst. G. B. 3 (1858–62): 195–200] an "entire failure" as an exposition of CD’s doctrine.

R. I. Murchison very civil.

CD counts Lyell among the converted.

Comments on W. H. Harvey’s article on a monstrous Begonia [Gard. Chron. 18 Feb 1860].

Is astonished at being attacked for not allowing great and abrupt variations under nature. More evidence needed to make CD admit that forms have often changed "by saltum".

Too ill to go to club.

Applauds JDH’s reply [25 Feb 1860] to W. H. Harvey in Gardeners’ Chronicle.

Asks JDH for some Goodenia.

Suggests Daniel Oliver try to cross Mimosa, noted for sterility.

CD’s list of fifteen converts. His opinions on opponents and supporters.

Lyell and CD would urge JDH to make his essays into a book, but see he has embarked on a huge project with G. Bentham [Genera plantarum, 3 vols. (1862–83)].

JDH coming to Down. Huxley will be invited.

Sends a letter concerning priority [of Patrick Matthew] for JDH to read and post.

Angered at Owen’s review.

Huxley’s Royal Institution lecture ends well.

What a base dog Owen is for praising his own work in reviewing Origin [anonymously].

J. H. Balfour is narrow-minded.

CD cannot understand pollination of Goodenia.

CD’s observations on curved styles read well. JDH seeks morphological rationale of curvature in the position of nectaries.

He has avoided lecturing to Royal Family’s children at Buckingham Palace.

CD intrigued by the pollination mechanism of Leschenaultia formosa.

CD interested in Thomas Bell’s rumour that Owen avows his review.

Curved styles and their relation to pollination.

Sends list of plants with asymmetry in nectar-secreting surfaces and pistils bent in that direction. Shows insect agency so important that structure has changed. Asks for contrary or confirming examples and that request be passed on to Daniel Oliver.

JDH has settled the Leschenaultia case, but it remains a difficulty to CD.

Goodenia, like bee orchid, seems a case of a structure with an evident function, which is not carried out. Is curvature of styles an incidental result of growth or a pollination adaptation?

To understand Leschenaultia pollination CD requires field observations in the native country.

Has observed two forms of cowslips, which he calls male and female. The same two forms are found in primroses.

Describes Sedgwick’s attack on CD’s views [at Cambridge Philosophical Society] and his own defence, though he believes CD has pressed his hypothesis too far.

Dissection of Leschenaultia convinces CD insect agency necessary for self-fertilisation in this case.

Primroses and cowslips seem universally to occur in two forms. Very curious to see which plants set seed.

J. S. Henslow’s defence of CD;

[Thomas?] Thomson’s opposition to Origin.

Instructs JDH on how to pollinate Leschenaultia.

Evidence of Leschenaultia and the dioecious condition of cowslips and Auricula is making necessity of insect pollination "clear and clearer".