Dear Washington

The case of the rock in the ice is I think so very remarkable, that I want to make a few remarks on it—, a couple of sentences,—in the form of a note or otherwise,¹ —if you have no objection to it. Will you therefore oblige me by copying the Lat. & Long of the spot where it was seen, & leave it with the Librarian at your rooms, & likewise any chart of the antarctic sea, which has recent tracks on it, that I may judge how far distant land probably is.— If you will do this, I will call on Monday or Tuesday at the Soc.—

May I beg one other favour, it is that you will send me one line by post, telling me how I ought to direct to Humboldt & Krusentern, for I know no more than if I had to write to the King of Prussia & the Emperor of all the Russias—

Believe me | Most truly yours | Chas. Darwin