[1] [p. 375]
...Mr. Wallace writes me as follows on this subject: "There is a point you do not refer to which seems to me most important—that is, whether the colours and markings of the feathers are developed in the young feather before it has opened out of its sheath, as we know that all the markings of the wings of butterflies are to be seen before it emerges from the pupa. If it is so, then climate can hardly have any direct influence."
Status: Draft transcription [Published letter (WCP7254.8455)]
For more information about the transcriptions and metadata, see https://wallaceletters.myspecies.info/content/epsilon
Please cite as “WCP7254,” in Beccaloni, G. W. (ed.), Ɛpsilon: The Alfred Russel Wallace Collection accessed on