Thanks JVC for his corrections. Will send other errata. Hopes to send remainder of vol. 2 [of Descent] in a fortnight.

Hopes German edition [of Descent] has not yet been printed because he has fallen into a most serious blunder [about sexual selection never acting on the young] on pp. 297–9 of vol. 1.

Corrections for Descent. Has sold 6500 copies in England.

Has finished rough draft of Expression, but will put it aside for the summer.

Will refresh himself with some curious observations on the response of plants to certain stimuli.

Thanks JVC for corrections for Descent. Index, which is too full, was hurried at the end.

Glad to hear of new German edition of Origin. He is revising the English edition, adding a new chapter of "Answers".

No new edition of Descent has appeared.

Would be glad to see a new translation of the Journal of researches, which he revised in 1845.

Comments on white colour of sea-birds.

Thanks HS for the preface to the 3d edition [of Die Thierzucht (1872)].

Has purchased H. von Nathusius’ work [? Vorträge über Viehzucht und Rassenkenntniss, Th. 1 (1872)]; feels he has ignored all that CD has attempted to make out with respect to domesticated animals.

CD offers to mark corrected passages in sheets of 6th edition of Origin.

Discusses question of hybrids between goats and sheep, on which H. von Nathusius has cast doubt in his recent Viehzucht [1872]. CD gives several references for a contrary view.

Asks JVC to inquire about HvN’s assertion that castrated rams have no horns.

Sends sheets [of the 6th ed. of Origin].

Thanks JVC for his letter about the sheep.