CD will supply the sheets of the new edition of the Origin [5th ed. (1869)] if JD goes ahead with his work [Kurze Darstellung der Lehre Darwin’s über die Entstehung der Arten der Organismen (1870)]. Has no objection to JD’s quoting him, but wonders whether the German publisher of Origin might not feel injured.

Asks about coat colour of elk,

the mane of American bison,

and about sexual preferences of female deer.

His observations of the chickens hatched from eggs of an isolated pair of pure-bred black-boned fowl. Nine were black-boned, two were like ordinary fowl.

Quotes a Mr Holdsworth on unusual expressions of Singhalese and Tamils in pointing and beckoning.