Does not remember his criticisms of CD’s theory. Can CD locate them in book?

Criticises analogy between knowledge of electricity and knowledge of origin of life.

Explains A. E. Brehm’s concept of subspecies. Discusses subspecies of Certhia.

Asks if CD will have corrections for 2d German ed. of Origin.

CD’s theory only natural way to explain creation but contradicts current knowledge about origin of life from inorganic matter.

Has read Primula paper [Collected papers 2: 45–63] with interest.

CD can add revisions since he cannot begin work on 2d German ed. of Origin until May.

Schweizerbart wants to publish translation of Orchids. Asks for woodcuts for illustrations.

Thanks for revisions in 2d ed. of Origin. Suggests correction regarding species numbers in the Tertiary.

Comments on pages of Orchids and problems of German translation.

Believes CD’s theory not yet proven, but that it will finally lead to truth.

L. C. Treviranus inclined to translate Orchids, but "unfortunately" HGB has already done it. Book’s discussion of plant sexuality important for zoology as well as botany.

Origin is in press. Attaches a list of "quelques petites difficultées" encountered in his translation.