On the breeding out of horns in Galloway cattle.

Has a finely graded series linking the dentition of the rhinoceros with that of the Palaeotherium of the Eocene.

Thanks for CD’s letter; hopes by his work to add one grain of proof to CD’s theories.

Variation between individuals of a species.

Thanks for copy of CD’s latest book [Variation].

European converts to CD’s theory.

Variation in recent leonine skeletons.

Miocene fauna of Europe.

On the genealogy of the horse.

Reports on prehistoric finds from caves at Rhagatt.

Reports on his findings in Denbighshire caves ["The Denbighshire caves", Trans. Manchester Geol. Soc. 9 (1869–70): 31–7].

Sends his paper ["On the prae-historic Mammalia in Great Britain", Intellect. Obs. (1868): 403–10].

Has changed his view on the descent of British cattle from the wild aurochs. No evidence that aurochs survived into historic times in Britain.

Discovery of skull of "River-bed" race of man near Corwen.

The box of bones sent by CD has led to a series of explorations. Reports on Yorkshire cave-hunting.

Thanks for the present of CD’s long-expected book [Descent].

Describes the successful excavation of caves containing interred remains of Neolithic man.

Asks CD’s support for his application for the Chair of Geology at Oxford.

Wants references to facts quoted in Variation for an essay he is writing on origin of British cattle.

Is glad CD is pleased with his book [Cave hunting (1874)].

Relationship between language and race. The Basques.

Asks CD to sign papers for Royal Society candidacy of W. B. Clarke.