Has reread copy of Fritz Müller’s letter that CD sent some time ago and would like to publish the entomological observations in it.

Is doubtful about the publication of Fritz Müller’s letter after so long an interval.

Encloses Fritz Müller’s letter.

Is exhibiting butterflies in which variations in the female show a finely graded series. Believes dimorphism can be explained by the selection of the extremes of such a series and the consequent extinction of the intermediates.

Thinks the facts in Fritz Müller’s letter could be published.

Recommends August Weismann’s essay on dimorphism ["Über den Saison-Dimorphismus der Schmetterlinge", Studien zur Descendenz-Theorie 1 (1875)]

and has no doubt that intermediate forms could be eliminated as RM suggests.

Does not think Fritz Müller can object to anything RM has said in his essay.

Has alluded to colour preference among butterflies in Descent [1: 400–1].

Interesting article by Fritz Müller on sexual selection in butterflies, Kosmos [1 (1877): 388–95].

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].