Famed American naturalist (1837–1921) best known for his writings on nature and travel. ALS, one page, 5 x 7.75, June 8, 1888. In full: “It will be impossible for me to write the paper you ask for. I am doing no literary work whatever this season & do not expect to do any. My health is not good & I am trying the hoe-handle cure, with very good results so far.” A few scattered creases, light soiling, and uniform toning, otherwise fine condition. RRAuction COA.