Famed American naturalist (1837–1921) best known for his writings on nature and travel. ALS, one page, 5 x 8, September 11, 1872. In a letter to a publisher R. W. Gilder, Burroughs writes, in full: “I send you by this mail the 2nd part of ‘Mellow England.’ Please let me know at an early day whether or not you can use it in the ‘monthly.’ When will the fourth part be published? Or would you prefer to make one paper of the whole of it?” In very good condition, with intersecting folds, none of which affect the signature, light creasing, and a small tear at the top edge. RRAuction COA.