Summary

Reports on his geological work in N. Wales since he and CD parted. Answers CD’s queries.

Summary

Is glad of CD’s appointment and hopes it will be a source of happiness and honour.

Answers a query about books.

Suggests CD go to Geological Society, present himself, as AS’s friend, to William Lonsdale and study the Society’s collection.

Tells CD of his work in Wales; includes a diagram and explanations.

Ramsay’s death a grievous loss.

Summary

Thanks CD for the Origin; AS has read the book "with more pain than pleasure". CD has deserted "the true method of induction" and many of his wide conclusions are "based upon assumptions which can neither be proved nor disproved". His "grand principle – natural selection" is "but a secondary consequence of supposed, or known, primary facts".

Summary

Congratulates CD on election of his son [George] as a Fellow of Trinity College.

Describes his ill health.

Invites CD to visit Cambridge.

[Letter dated November in error.]

Summary

Writes of CD’s recent visit to Cambridge and the joy it gave him.