Admires LR’s book [Die Fauna der Pfahlbauten (1861)].

Will attempt to arrange for skull of wild white Chillingham cattle to be sent by Earl of Tankerville.

CD has come to same conclusion as LR on zebus.

CD’s MS of Variation is half-prepared.

Lord Tankerville has not responded to the request for the skulls which LR requires for his research. CD addressed Lord T through his friend Sir Henry Holland, who is prepared to try again, despite Lord T’s rudeness.

Chillingham cattle leg bones will be sent to LR.

J. E. Gray has read a paper on unusual Japanese domesticated pig at the Zoological Garden ["On the skull of the Japanese pig", Proc. Zool. Soc. Lond. (1862): 13–17].

Thanks LR for sending his works.

Correcting proofs of Variation.

Chapter on pigs and cattle derived mostly from LR’s work.

Will forward LR’s memoir to Earl of Tankerville. Has sent LR’s pamphlet on "Darwin Lehre" [Die Grenzen der Thierwelt (1868)] to a German lady he employs as a translator. Cannot agree that there is an innate principle of perfection.

Thanks for LR’s essay on living and fossil turtles [Bull. Soc. Sci. Nat. Neuchâtel 9 (1873): 439–41].

Thanks for KLR’s latest work (Rütimeyer 1875).