See St. Louis edition, vol. X, 2222. - So far, in all editions, this letter has had the heading: An einen Ungenannten." Burkhardt, p. 353, says: "The letter is to Nicolaus Sastrow, according to Mohnike's Sastrow, 1,184. From it in: ,Die Grenzboten', 1857,18."
No. 2648.