To Wilhelm Bernhard Rudolph Hadrian Dunker 5 April 
Down Farnborough Kent
At last I am able to return you your valuable specimens, & those belonging to Mess Roemer Philippi & Koch.1 Pray accept my most cordial thanks for your great kindness & communicate the same to the above three distinguished naturalists. When you return the specimens, will you be so good as to present each of the above gentlemen with a copy of my small Monograph.2 —with which I am not well satisfied, though I have done it as well as I could.—
Pray believe me with much respect, | Yours much obliged | C. Darwin
Returns fossil cirripede specimens to WD, Friedrich Adolph Roemer, R. A. Philippi, and F. C. L. Koch.
Please cite as
Darwin Correspondence Project, “Letter no. 1398,” accessed on 27 August 2016, http://www.darwinproject.ac.uk/DCP-LETT-1398