Showing 21–40 of 49 items
Wishes to borrow Weismann’s pamphlet on the Daphnidae [ "Ueber die Schmuckfarben der Daphnoiden", Zeitschrift für wissenschaftliche Zoologie 30 (Supp.)]. Is preparing an essay on "alternation of generations".
Encloses proof of CD’s prefatory notice for RM’s translation of Weismann; hopes CD might enlarge upon it.
Declines CD’s generous offer of assistance with publishing costs of Weismann’s Studies, but would welcome his help in getting elected to the Royal Society.
Thanks for agreeing to propose him for the Royal Society.
Discusses the origin and advantages of sexual differentiation in terms of division of labour.
Discusses the origin of the giraffe’s neck and the unsoundness of St G. J. Mivart’s view with respect to it.
Points out an error in Descent.
Discusses his paper on mimicry and natural selection [Land and Water 9 (1871): 321]. Believes natural selection tends to fix mimetic characters rigidly.
Discusses the roles of natural and sexual selection in producing mimicry, and the problem of explaining the cause of the first mimetic variation; considers the ideas of A. R. Wallace and Fritz Müller on this problem.
Wishes to use some of Fritz Müller’s observations in his paper on mimicry.
CD’s reply and Huxley’s article ["Mr Darwin’s critics", Contemp. Rev. 18 (1871): 443–76] have answered all of Mivart’s objections to natural selection as applied to man.
A. G. Butler has named the specimens sent by CD with Fritz Müller’s letter.
Sends several facts relating to sexual selection, mimicry, and hybrids.
Discusses the possibility that mimicked and mimicking forms have descended from originally allied forms and have diverged in structure but not in appearance.
Gives some information on variation of ocelli between sexes in butterfly species.
Proposes publishing a series of papers on mimicry.
Encloses a copy of his paper on mimicry [Proc. Zool. Soc. Lond. (1873): 153–61].
Asks whether large variations are more often limited to one sex than slight ones.
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The Fund is now £236. Marchant wants to issue order for medallion of ARW. Asks if Poulton can get the unpaid promises to him. Miss B. is in town & is going to bring some boxes of Java butterflies for Meldola to hand over to Poulton for the Hope Museum. She will let him know the history of the collection.