Asks whether he can borrow from Joshua Alder an article [Sven Ludvig Lovén, "Ny art af Cirripedia Alepas squalicola", Ofers. Kongl. Vetensk. Acad. Förh. 1 (1844): 192–4] in order to have the plate copied. Asks to borrow additional specimen of Ibla.
Down Farnborough Kent
I am going to beg you to endeavour to procure me a very great favour from
Now that I am in the way of begging favours, I will ask conditionally another: you once sent me a spirited sketch of an Ibla from Australia: have you more than one or two specimens: I have the greatest wish to possess the very base of the peduncle still attached to whatever it adheres, especially if the surface be smooth: it is too long a story to tell why, but hereafter if you look at my monograph you will admit the importance of the point.
Pray forgive my giving you all this trouble. I see that you continue always hard at work. I have lately been reading with great interest your Papers in the Annals on the Bryozoa.—
Believe me | Your's sincerely | C. Darwin
P.S. Will you forgive my sending so untidy a note,
but writing the above reminded me that some time since I purchased
4 specimens which until this minute I unaccountably
have forgotten—but I see all are attached to a most rugged surface, if yours
happens to be attached to anything smooth & you could spare the
base of the peduncle, still attached, I sh
- f1 1433.f1Joshua Alder, who had, through Hancock, informed CD about Sven Lovén's paper (Lovén 1844) on a new species of the Cirripedia that he named Alepas squalicola (see Correspondence vol. 4, letter to Albany Hancock, 29 September ).
- f2 1433.f2Johannes Japetus Smith Streenstrup. See Correspondence vol. 4, letter to J. J. S. Steenstrup, 25 January .
- f3 1433.f3George Brettingham Sowerby Jr's copies from Lovén 1844 are figs. 1 and 2 of Plate IV in Living Cirripedia (1851), with explanations given on pp. 380–1.
- f4 1433.f4Ibla quadrivalvis. The description gives Hancock as the source of a specimen from ‘New South Wales, attached to a mass of the Galeolaria decumbens’ (Living Cirripedia (1851): 204).
- f5 1433.f5There is no clue in the discussion of Ibla in Living Cirripedia (1851) as to why CD was interested in the surface of attachment. One possibility is that because Ibla resembled the boring genus Lithotrya in having part of its body within the peduncle, CD wanted to examine closely its means of attachment (see Living Cirripedia (1851): 181, 336–48). CD and Hancock had previously corresponded concerning the boring powers of Lithotrya (see Correspondence vol. 4, letters to Albany Hancock, 29 September  and n. 3, [29–30 October 1849], 25 December , and [26 January – March 1850]).
- f6 1433.f6A. Hancock 1850.
- f7 1433.f7In the original letter, after the paragraph ending ‘the importance of the point’, CD had written and then deleted a request for permission to ‘soak & open a specimen to look at one other very curious point, in this most curious genus’ (see Manuscript alterations and comments).
- f8 1433.f8The four specimens that made the request unnecessary had been purchased from G. B. Sowerby Jr (Living Cirripedia (1851): 207). The ‘curious point’ refers to CD's earlier discovery of males complemental to hermaphrodites in Ibla quadrivalvis and true males and females in I. cumingii (see Correspondence vol. 4, letters to J. D. Hooker, 10 May 1848, and to Louis Agassiz, 22 October 1848). CD discussed the complemental males of Ibla in Living Cirripedia (1851): 207–14.