To Albany Hancock 8 June 
Down Farnborough Kent
I am going to beg you to endeavour to procure me a very great favour from Mr Alder—namely the loan of the volume, or of the Plate of Lovèn’s Alepas squalicola, of which he most kindly sent me an outline tracing.1 Steenstrup sent me one specimen,2 which I dissected, after comparing it externally with the drawings, & now I am most anxious for Mr G. B. Sowerby to copy two of the figures for my vol. for the Ray Soc. for which the Plates are now engraving.—3 I do not know whether there is a copy in the Brit. Mus. & if there be, it would be very troublesome to obtain permission to have a copy made, & such wd not be so accurate, as if Mr Sowerby could have the Plate at his own house.— I have charged him in case Mr Alder would confer this favour on me, to take the greatest care of it, to acknowledge its receipt, & to pay its return carriage, & not keep it long. Mr S. address is 29. Albert St. New Camden Town London.
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:4 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.5
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.—6
Believe me | Your’s sincerely | C. Darwin
P.S. Will you forgive my sending so untidy a note,7 but writing the above reminded me that some time since I purchased 4 specimens8 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 shd be very much obliged.—
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.
Please cite as
Darwin Correspondence Project, “Letter no. 1433,” accessed on 24 April 2017, http://www.darwinproject.ac.uk/DCP-LETT-1433