Summary

Dining with the Lubbocks.

JL’s paper on respiration of insects ["On the distribution of the tracheae in insects", Trans. Linn. Soc. Lond. 23 (1860–2): 23–50].

Summary

Huxley and William Sharpey praise JL’s paper [? on Daphnia, Philos. Trans. R. Soc. Lond. 147 (1857): 79–100] at Philosophical Club.

Summary

Voting to elect JL [a member of Athenaeum].

Summary

Asks JL not to call as he has a "very old friend" [J. S. Henslow] coming to visit him.

Yesterday visited poultry show at Crystal Palace.

Summary

Invites JL to dine and meet J. S. Henslow.

Summary

Thanks JL for saving him from "a disgraceful blunder". Following their conversation he has divided the New Zealand flora as JL suggested and finds genera with four or more species are more variable than those with three or less. It will take several weeks to go back over all his material.

Summary

Asks to borrow several Floras. Must redo calculations as John Lubbock has shown him an important error.

Summary

Thanks him for information concerning Crustacea.

Comments on natural history study in the U. S.

Mentions work done by Huxley on Crustacea ["Description of a new crustacean", J. Geol. Soc. Lond. 13 (1857): 363–9];

John Lubbock on larvae of Diptera.

Summary

Thanks for three last lectures and the account of cirripedes.

Difficulty of classifying the higher groups.

Summary

Delighted that JSH is coming to Down. Sends correct train time.

Summary

Tabulation of varieties goes on; very important as it shows the branching of forms. Mentions his principle of divergence.

Summary

Asking for specific information about reproduction in barnacles.

Summary

Important issue at stake with new flora calculations: evidence that species are only strongly marked varieties. Planning large-scale survey.

Summary

Birth of his sixth son [C. W. Darwin]. It is dreadful "to think of all the sendings to school and the professions afterwards".

CD is not well but has not the courage for water-cure again; trying mineral acids.

Working hard on the book [Natural selection]; is overwhelmed with riches in facts and interested in way facts fall into groups.

To his surprise [Helix pomatia] has withstood 14 days in salt water.

Pigeons’ skins come in from all parts of the world.