My dear Sir.

Fritz Müller (whose name no doubt you know) resides in S. Brazil— He is, I believe, about the most acute observer in the world, & I have always found him most kind & obliging.— His address is “Blumenau St. Catharina Brazil” (Postage 6^d stamps)

If you write, I hope that you will not object to quote from me, that I sent the specimens to you “as knowing far more about Spiders than any other man in Britain”. He might be surprised at my at once sending them away.—¹

Yours sincerely | Ch. Darwin.