Summary

Sends the Fritz Müller article from Kosmos.

Summary

Wishes to subscribe to RM’s translation of Weismann.

Has seen Scudder’s article.

A. R. Wallace’s article ["Animals and their native countries", Nineteenth Century 5 (1879): 247–59] is excellent.

Summary

Suggests he write to Ernst Krause about publication of translation of Fritz Müller’s paper. FM’s view of mutual protection is quite new to CD.

Summary

Shares RM’s misgivings about Fritz Müller’s mutually protecting mimics. Would expect bird’s response to distasteful caterpillars to be instinctive. Believes J. J. Weir or Thomas Belt may have investigated the point.

Summary

Would like to subscribe to English edition of Weismann.

Summary

Has arranged for publication of his translation of Weismann.

S. H. Scudder article on sexual dimorphism in butterflies [Proc. Am. Acad. Arts & Sci. 12 (1877): 150–8].

Summary

Sends specimens from F. Müller.

Criticises A. R. Wallace’s review of Grant Allen’s The colour-sense [Nature 19 (1879): 501–5].

Summary

Comments on the branchiate trichopteran specimen from Fritz Müller sent previously.

Summary

Wants to republish Fritz Müller’s paper ["Ituna and Thyridia", Kosmos 5 (1879): 100–8] in Proceedings of the Entomological Society. [Thyridita!?]

Summary

Discusses Fritz Müller’s paper on the mutual protection of certain mimics ["Ituna and Thyridita", Trans. R. Entomol. Soc. Lond. (1879): xx–xxviii]. [Thyridia!?]

Summary

Sends subscription form for English edition of Weismann’s Studien.