Is glad FM approves of a translation of Für Darwin.
Hopes FM will think well of Pangenesis.
Sexual differences in insect auditory and stridulating organs.
Read FM's paper on Balanus with great interest ["On Balanus armatus", Ann. & Mag. Nat. Hist. 4th ser. 1 (1868): 393–412].
Down Bromley Kent
June 3. 1868.
My dear Sir
I am delighted that you approve of the Translation. I have
sent your errata & the additions (which latter I wish had
been more copious) to Mr Dallas. M
Your letter of Ap. 22 has much interested me. I am
delighted that you approve of my book, for I value y
I am sorry about the mistake in regard to Leptotes; I dare say it was my fault, yet I took pains to avoid such blunders.
Many thanks for all the curious facts about the unequal numbers
of the sexes in Crustacea; but the more I investigate this subject the
deeper I sink in doubt & difficulty. Thanks also for the
confirmation of the rivalry of Cicadæ. I have often
reflected with surprize on the diversity of the means for
producing music with insects & still more with birds. We
thus get a high idea of the importance of song in the animal
kingdom. Please to tell me where I can find any account of
the auditory organs in the Orthoptera? Your facts are quite
new to me. Scudder has described an annectant insect in
Devonian strata, furnished with a stridulating apparatus: I
believe he is to be trusted, & if so the apparatus is of
astonishing antiquity. After reading Landois paper I have
been looking at the stridulating organ in the lamellicorn
beetles, in expectation of finding it sexual; but I have
only found it as yet in two cases, & in these it was equally
developed in both sexes. I wish you w
After the publication of my Book a gentleman wrote to me that he had distinctly seen in his aquarium a Balanus insert its penis through the open operculum deep into an adjoining shell! I cannot just now lay my hand on this letter, but I think he saw the act repeated several times.—
With most cordial thanks for all your kindness, My dear Sir | Yours very sincerely | C. Darwin.
- f1 6224.f1See letter from Fritz Müller, 22 April 1868. William Sweetland Dallas was translating Müller's Für Darwin (F. Müller 1866, W. S. Dallas trans. 1869).
- f2 6224.f2John Murray was CD's publisher and the publisher of W. S. Dallas trans. 1869.
- f3 6224.f3James Dwight Dana.
- f4 6224.f4See letter from Fritz Müller, 22 April 1868 and n. 3.
- f5 6224.f5See letter from Fritz Müller, 22 April 1868 and n. 7.
- f6 6224.f6See letter from Fritz Müller, 22 April 1868 and nn. 8--17. CD cited Müller's remarks on the proportion of the sexes in Crustacea in Descent 1: 315.
- f7 6224.f7See letter from Fritz Müller, 22 April 1868 and n. 18. CD's cited Müller's remarks on the musical contest between male cicadas in Descent 1: 351.
- f8 6224.f8CD mentioned Samuel Hubbard Scudder's discovery in Descent 1: 360 (see also Scudder 1865).
- f9 6224.f9See Descent 1: 382. CD refers to Hermann Landois and Landois 1867.
- f10 6224.f10CD discussed beaks of toucans (Ramphastidae) in Descent 2: 227.
- f11 6224.f11See letter from Fritz Müller, 22 April 1868 and nn. 20--3.
- f12 6224.f12See letter to Fritz Müller, 3 April  and n. 2.
- f13 6224.f13See letter from Fritz Müller, 3 April 1868.
- f14 6224.f14CD refers to F. Müller 1868a, a translation of F. Müller 1867. Balanus armatus is a synonym of B. trigonus. Müller discussed the cement tubes of B. armatus in F. Müller 1868a, p. 401, referring to CD's Living Cirripedia (1854), pl. 28, fig. 4a (see also `Description of plates', p. 669).
- f15 6224.f15See Correspondence vol. 6, letter from Richard Bishop to C. S. Bate, 3 December 1857.