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.

Comments on Richard Owen’s review of the Origin [in Edinburgh Rev. 111 (1860): 487–532]. Considers Owen unfair to CD and most ungenerous toward Hooker.

Expects Sedgwick to be fierce against him. Sedgwick also misrepresented CD in his Spectator review [24 Mar and 7 Apr 1860].

Compares natural selection to the undulatory theory of light as a hypothesis explaining a large number of facts.

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".

Thanks JSH for his defence [see 2794].

He is not hurt for long by what his attackers say. His conclusions were arrived at after long study. He has certainly erred, but not so much as "Sedgwick and Co." think.

Asks JSH to send names of plants that vary greatly in length of pistil.

Lyell, de facto, first to stress importance of geological changes for geographical distribution.

Asa Gray has given CD too much credit for theories of geographical distribution.

Reaction to hostile criticism

and debt to Lyell, Huxley, JDH, and W. B. Carpenter.

Sends characters by which he can divide all primroses and cowslips into what he suspects will be male and female plants. Believes these forms are first step in formation of a dioecious plant.

Floral anatomy.

Wallace’s capital response on reading Origin.

E. W. Binney has published on coal-plants living in marine waters ["On the origin of coal", Mem. Lit. & Philos. Soc. Manchester 2d ser. 8 (1848): 148–94], an old CD idea.

Waste of pollen in horse chestnut will make a good case against perfection.

Local affairs.

Convinced selection is the efficient cause. Less convinced of physical causes than JDH because he sees adaptation everywhere and that must be due to selection.

Local affairs.

Harvey’s letter to JDH more accepting of natural selection than CD expected.

Battle over Origin is raging in the United States.

Weary of hostile reviews.

Doubts about going to Oxford [for BAAS meeting].