To A. A. Gould 9 September 
Down Farnborough Kent
At last I have finished my work on cirripedes, & have packed up the specimens you were so very kind as to lend me.1 They have been extremely useful to me. As you are a member of the Ray Soc.y, & as I am indebted to many naturalists, who are not members, & to whom I wish to send copies, I have not sent you one, believing that you would excuse me.—
I have directed Mrs. Williams, & Norgate, through whom I send next week the Box, to pay the carriage, & this being the case, I have thought that you would forgive me sending in the same box the specimens which Prof. Agassiz was so kind as to send me,2 & a copy of my work for him.— When you next see Prof. Agassiz, will you be so good as to give him my cordial thanks & my kind & respectful remembrances.—
Once again allow me to thank you for the confidence you have placed in me in so long allowing the specimens to remain in my possession.— They are, I believe, all returned safely, excepting one very curious var. (of which fortunately you have a duplicate) of Tetraclita porosa,3 which was stolen together with some other specimens (not belonging to you) out of a parcel.—
I mentioned on a former occasion how freely I had ventured to dissect the specimen of Ibla Cumingii from Tavoy.4
Pray believe me, my dear Sir, with sincere respect. | Your’s truly obliged | Charles Darwin
Returns cirripede specimens to AAG. Encloses specimens for Louis Agassiz in same box.
Since AAG is a member of the Ray Society, will not send him a copy of Living Cirripedia, vol. 2.
Please cite as
Darwin Correspondence Project, “Letter no. 1591,” accessed on 29 July 2016, http://www.darwinproject.ac.uk/DCP-LETT-1591