Congratulations on birth of THH’s daughter [Jessie].

On aboriginal dun colour of horses.

Examples of inaccuracies and perpetuation of errors [on hybrids] by "compilers, of which I am one".

CD’s reasons for not signing the memorial requesting removal of natural history exhibits from British Museum. Less sure about moving botanical specimens to Kew. His notion of museum organisation.

Hooker has convinced him that move of British Museum by Government is anticipated. He is now willing to sign the memorial. Still fears for library needs, and objects to distant Kensington site. Lyell should be asked to sign.

Has had some misgivings about the memorial but now thinks his fears were vain and cowardly. Regrets R. I. Murchison was not told in advance. His low opinion of the Government and B. Disraeli.

K. E. von Baer’s view of the air bladder of fishes.