To J. S. Bowerbank 19 January 
Down Farnborough | Kent
My dear Sir
In accordance with your permission, I have cleared one of the large valves, which can be now drawn. The four little embedded pieces, now cleared & separated, consist of (1) a fragment of a scutum, (2) a perfect upper latus (3d) a perfect lower latus 4th. a broken do.—1
Your specimen is certainly now a hundred–fold more instructive; & the 3 valves which were in their nearly proper position have not been in the least displaced.
Many thanks for offer of sessile cirripedes, but I am not nearly ready for them yet.—2
Forbes3 wrote to me that he understood that you had some valves from the Gault of Pollicipes besides those sent to me; if you have & wd entrust them to me, I shd be particularly thankful, as I want to see as many as possible.— Mr Fitch has sent me some beautiful specimens for description.—
I fully thought I had asked you in my former note, & if I did not it was an accidental omission which I am very sorry to say will entail another note on you.— It is to ask whether you will permit me to have some of your specimens drawn by Mr J. Sowerby: I intend to have all the fossils (if I get permission), which have any good characters, drawn.—
With respect to publication of the fossils, I have not yet thought: your mentioning the Palæont. Soc. makes me think whether my work wd suit them.4 I hope immediately to receive a lot of fossils from Copenhagen-chalk, named by Beck5 & Steenstrup; which will be very valuable for comparison with the British specimens.— Will you give me your idea about Palæont. Soc.— I suppose, even if you thought it would suit, I had better wait till I have done the Sessile cirripedes, as the whole will of course be only a small Part.—
Pray forgive this trouble. & believe me. Yours very faithfully | C. Darwin
Describes result of his dissection of one of JSB’s cirripede specimens, "now a hundred fold more instructive". Awaits fossils from Copenhagen Chalk for comparison with British specimens. Asks permission for J. de C. Sowerby to draw specimens.