Has learned that Fritz Müller is HM’s brother.

Made aware by Asa Gray of error with respect to Cypripedium. Does not doubt it is self-fertilised.

Müller’s observations on orchids excellent.

Offers to undertake publication of English translation of Fritz Müller’s Für Darwin. W. S. Dallas will translate it.

Pleased HM says good words for Pangenesis.

Interested that HM is studying structure of insects in relation to flowers.

Comments on HM’s paper ["Anwendung der Darwin’schen Lehre auf Bienen", Verh. Naturhist. Ver. preuss. Rheinland 29 (1872): 1–96];

sexual selection in bees.

Encloses account on habits of Bombus.

Comments on HM’s book [Die Befruchtung der Blumen (1873)]. Particularly glad to read historical sketch and discussion of work of C. K. Sprengel.

Further comments on HM’s [Befruchtung der Blumen (1873)].

On HM’s Befruchtung der Blumen [1873].

Comments on Fritz Müller’s article on Hedychium.

Thanks HM for his review [of Forms of flowers, Kosmos 2 (1877–8): 286].

Thinks HM’s previous article was very important [Kosmos 2 (1877–8): 128–40]. CD will "heartily rejoice" if HM has explained the steps by which Rhamnus and Valeriana have been rendered dioecious.

Writing on vegetable physiology.

Nothing in CD’s life has ever interested him more than the fertilisation of such plants as Primula and Lythrum.

Has just heard that HM has been treated shamefully by his Government. What has happened?

Enjoyed HM’s castigation of Gaston Bonnier ["Gaston Bonniers angebliche Widerlegung der modernen Blumentheorie", Kosmos 7 (1880): 219–36].

Has heard of flood from which Fritz Müller escaped. Has he lost books, microscope, apparatus? Offers £50 or £100.

The Origin converted him from a Linnean interpretation of flowers and mosses.

Glad that CD appreciates his continuing work on mosses, in support of natural selection.

Plans to repeat CD’s orchid experiments.

Sends interpretation of the floral anatomy of Lopezia miniata.

Thanks for "Climbing plants" offprint and for references on fertilisation of flowers.

Considering the bounty of work already done, he is looking for something original to do.

Subularia does not grow in Westphalia.

Thanks for German version of Origin [1867].

Dipterous insects are adapted to eating pollen rather than only to sucking nectar. He describes such adaptations in two dipteran species.

Thanks CD for his photograph.

Intends to start experimenting with mosses to determine which differences in structure are effected by altered conditions of life.