Fritz Mueller also has lately shown that the males alone of certain
butterflies have odoriferous glands on their wings (distinct from those
which secrete matter disgusting to birds), and where these glands are
placed the scales assume a different shape, making little tufts.
Farewell: I hope that you find Dorking a pleasant place? I was staying
lately at Abinger Hall, and wished to come over to see you, but driving
tires me so much that my courage failed.--Yours very sincerely,
CHAS. DARWIN.
* * * * *
_Madeira Villa, Madeira Road, Ventnor, Isle of Wight. September 3,
1877._
My dear Darwin,--Many thanks for your letter. Of course I did not expect
my paper to have any effect on your opinions. You have looked at all the
facts so long from your special point of view that it would require
conclusive arguments to influence you, and these, from the complex
nature of the question, are probably not to be had. We must, I think,
leave the case in the hands of others, and I am in hopes that my paper
may call sufficient attention to the subject to induce some of the great
school of Darwinians to take the question up and work it out thoroughly.
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