My dear Hooker

I enclose one of Ehrenberg’s letters, which had not arrived; I do not send you the one to me, as it contained nothing but enquiries about the dust and other such subjects.²

Very many thanks for all your and your cook’s wisdom about Crabs, which has been duly copied out.—³

In looking over some coralls, I found the enclosed sea-weed from the Galapagos Isl^ds & I believe from 12 fathom’s depth; I thought perhaps you would like to have it— I, also, send either for yourself or M^r Harvey⁴ specimen. 390 & 391 of the little conferva in bundles described at p. 14 of my Journal: I have not, however, looked to see whether they are preserved. 392 is a minute attached conferva from 17 Fathoms off the Abrolhos Is^d coast of Brazil.⁵ Please throw away these specimens if of no use.

Did you collect any pediculi fm your voyage; especially from the Penguin: H. Denny (to whom I have given all my specimens) has written to me expressing a great wish to have some from the antarctic regions.⁶ If you are able to supply him: his address is “Philosophical Hall Leeds”.

Whenever you have ready the specimens for Ehrenberg, they had better be sent here by the “Down Coach from Bolt-in-tun Fleet St^t.”

Ever yours | C. Darwin