The most important American botanist of the 19th century (1810–1888). Short ALS, one page, 5 x 8, Botanic Garden of Harvard University letterhead, February 2, 1881. Brief letter to Edward Bok. In full: “It gives me pleasure to accede to your request. I remain truly yours.” A clipped signature is affixed to the bottom of the page along with a small news clipping. In fine condition, with a couple corner creases. RR Auction COA.