Has sent JDD a copy of Origin; knows it will horrify him, but hopes JDD will credit him with an honest search for truth. Believes that JDD may come to think there is more to be said "in favour of mutability of species than is at first appreciated".

Has been able to do nothing in science of late due to illness [of Henrietta].

When JDD reads Origin, CD knows he will be opposed to it, but he will be liberal and philosophical, which is more than he can say for his English opponents.

Has not yet seen L. Agassiz’s attack, but in principle avoids answering.

No one understands Origin so well as Asa Gray.

At BAAS meeting at Oxford, CD’s side seems almost to have got the best of the battle.

Responds to JDD’s letter [3845].

Discusses his own poor health.

"Man is our great subject at present."

Lyell’s book [Antiquity of man (1863)] sold 4000 copies on day of sale.

"The fossil bird [Archaeopteryx] … is a grand case for me." Wishes a skeleton could be found in the "so-called red sandstone foot-step beds".

Received JDD’s book [Manual of geology (1862)]

and pamphlet on man ["On the higher subdivisions in the classification of mammals", Am. J. Sci. 2d ser. 35 (1863): 65–71].

Fully admits JDD’s objections are valid. But is convinced of the general truth of his own views (with much incidental error), because they embrace so many phenomena and explain them.

Discusses some mistakes Owen has made;

Falconer’s disagreement with Owen ["On the mammalian genus Plagiaulax", Q. J. Geol. Soc. Lond. 18 (1862): 348–69].

Orders that one of CD’s Porto Santo rabbits be killed and sent to him.

Asks whether ADB has got young from mating these with females of other breeds.

Thanks JHB for specimen of Corallorrhiza;

would like some seeds of Corydalis claviculata.

Praises WDW’s essay on language [North Am. Rev. 119 (1874): 61–88] which argues against Max Müller’s views and is a good defence against an attack made in Quarterly Review on CD’s short discussion of language.

Thanks OCM for the papers he has sent.

Hopes WDW will come to Down.