Summary

£100 has arrived and LW will set to work.

Summary

GH no longer believes in the value of cross-fertilisation in plants.

Summary

Gives results of the experiments: the leaves in most cases make the water alkaline. It cannot be ammonia. He and his son, Francis, suspect potash, which is valued as a manure. Will be grateful for the analysis EF has offered.

Summary

Sends birthday wishes.

Comments on progress of CD’s theory in Germany. Mentions opposition of Rudolf Virchow and his reply Freie Wissenschaft und freie Lehre [1878].

Describes research trip to Brittany and Normandy.

Research on Challenger Radiolaria.

Summary

Birthday congratulations from the editors of Kosmos. They will mark the occasion with a special number of Kosmos.

Summary

Thanks KA and the other editors of Kosmos for the issue published in honour of his birthday. Sees there is much in it that will interest him greatly.

Summary

Birthday greetings.

Summary

Thanks ADeB for sending him Botanische Zeitung, but asks him to send it no more, as CD takes it regularly and has procured the volumes from the beginning.

Summary

Disagrees with GH over the value of cross-fertilisation.

Summary

Thanks for honour of latest number of Kosmos.

Summary

Encloses HWB’s Royal Society certificate with seven signatures, which CD thinks is ample.

Summary

Thanks for kind letter.

Has not yet read EH’s article in Kosmos ["Einstämmiger und vielstämmiger Ursprung", 4 (1878–9): 360–76].

Rudolf Virchow affair lamentable. Virchow’s conduct inexplicable.

Summary

Has sent copy of his new book, Colour-sense [1879]; in anticipation of criticism, he justifies his reliance on recorded observations rather than experiments, by the heavy demands of his career as a journalist.

Summary

Seventieth birthday greetings.

Summary

Thanks for birthday greetings.

Summary

Can give no information. Has never read works of Aristotle, but has unbounded respect for him as observer.

Summary

Has just heard that HM has been treated shamefully by his Government. What has happened?

Summary

Thanks AD-P for the gift of part of his Atlas [see 11039].

Summary

Seventieth birthday greetings.

Summary

Send 70th birthday congratulations.