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Thanks for answer to queries.
Expresses intention of reporting observations of traces of life in the Long Mynd beds and asks permission to cite ACR on his recent discovery of fossils in the Laurentian marbles of Canada.
Urges ACR’s investigation of Glen Roy problems.
Sends payment for Francis Darwin’s tutoring. Inquires about possible arrangements for his son Leonard, who is slow and not well, to attend with Francis.
Asks whether he can have a cutting of GVR’s carrion-smelling Arum which he needs for an experiment.
A. D. Bache reports that self-recording instruments are installed at Washington observatory and ready to begin observations. ES is making field observations to confirm changes in magnetic lines in England since ES's 1837 survey. [JH annotation: Summary of Bache's letter. Joint survey by Smithsonian Institution and U.S. Coast Survey will begin when Bache receives full instructions from Sabine.]
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Returns JDH’s proofs. He is so involved in Origin he cannot judge force of JDH’s arguments. Some detailed comments.
Haldeman’s old paper [see 2470] clever, but does not have natural selection. Explaining adaptation has always seemed turning point of theory of natural selection.
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Discusses affairs at Down and WED’s coming trip to the Lakes.
Is getting on very slowly with his "confounded proof-sheets" [of Origin].
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