Quotes CD’s "horrid doubt" [see 13230]. WG fails to see force of the argument. Evolution throws no suspicion on man’s reasoning faculties. The case is no different with the faculty that gives data.

Thanks him for his letter. "I am not a quick thinker or a good talker and you would learn nothing from me on the many important subjects you have discussed."

Suggests meeting in London in lieu of a visit to Down.