Would like to see the Kosmos article.

Is considering producing a translation of August Weismann’s essays.

Comments on Wallace’s paper on the colours of animals and plants [Macmillan’s Magazine 36 (1877): 384–408, 464–71].

Thinks Weismann would welcome a translation.

Was dissatisfied with Wallace’s article.

Hopes RM finds a publisher [for his translation of Weismann’s Studien].

Good article by Fritz Müller in Kosmos supporting August Weismann’s views on caterpillars.

Wishes to borrow third part of Fritz Müller’s article on sexual selection in butterflies [Kosmos 2 (1877–8): 218–24].

Is forwarding material on stridulation, including Prof. Wood-Mason’s paper ["Note on Mygale stridulans", Trans. R. Entomol. Soc. Lond. (1877): 281–2], which should interest CD.

Is dispatching December number of Kosmos.

Will read the discussion on stridulation that RM mentioned.

Thinks there can be no objection to RM’s using a Fritz Müller letter [see 11319].

Returns Kosmos.

Thanks CD for permission to use Fritz Müller’s last letter, which contains new observations.

Thanks RM for his interesting paper ["Entomological notes bearing on evolution", Ann. & Mag. Nat. Hist. 5th ser. 1 (1878): 155].

Encloses proof of the Entomological Society’s Proceedings for February to show the use he has made of Fritz Müller’s letter [see 11319].

Asks RM to send a copy of the Entomological Society’s Proceedings to Fritz Müller.

Thinks RM may like to see the enclosed [Fritz Müller letter].

Would like to have some insect photographs identified; they seem to show pretty and new case of protective resemblance.

Will exhibit the photos at the Entomological Society and have them identified.

Fritz Müller’s observations on relative abundance of mimicking and mimicked species.

Encloses Fritz Müller letter, which may be of interest [see 11463].

RM should take no more trouble over the subject [Otto Zacharias’ photos; see 11510].

Prof. Wood-Mason has examined Otto Zacharias’ insect photographs and confirmed the genera.

RM is going to work up Fritz Müller’s observations into a paper.

Is glad RM will draw up a paper from Fritz Müller’s letter.

Has received interesting essay from August Weismann on sexual selection in daphnoids [“Schmuckfarben der Daphnoiden”, Z. Wiss. Zool. (1878)].

Would like to read Weismann’s essay on Daphnidae.

Fritz Müller’s paper on odours emitted by butterflies was read at last Entomological Society meeting.