Sir,

I have the honour to send you a paper on the coasts of Manghischlak and Alaska and beg you inform me, whether M^rs. Gibb and Meek have not published something like it on the same object.¹ I have read in the newspapers that the Americans send a Commission with a young geologue Mr. Dall in order to measure the coasts of Alaska and the aleutic islands²   Has this young man published anything on this object? I should like to send him also a copy of my paper, if I only could be informed, where he is to be found.

Allow me, dear Sir, to ask you to help me on one occasion. I shoud wish to sell my palaeontogical museum, consisting of about 35000 specimens, of all the formations of Russia on Europe and Asia, fossils plants and animals, among which are those coming from Manghischlak and Alaska and described by me in the present paper. The prize for all the collection is mille p. st.³

The most interesting are the brachiopoda coming from the vicinity of Petersbourg, from the silurian rocks, especially the Orthis, Orthisina, Spirifer, Terebra tube and others genres,⁴ forming only varieties and not real species or genres, as there are not to be found among them two individuals one like the other. This is the reason why I formerly thought that there were no species, but only varieties in the oldest primary neptunian rocks.⁵

I am with much respect | yours truly admirer Dr. d’Eichwald

Petersbourg   January 10 1872

Gagarin-street 12.