Alcorn, a N. E. county of Mississippi, bordering on Tennessee; pop. in 1870, 10,431, of whom 2,768 were colored. • It was organized in 1870 from portions of Tippali and Tishemin-go counties, and was named in honor of James L. Alcorn, governor of the state. The Tus-cumbia and Hatchie rivers intersect the county, and the Memphis and Charleston and Mobile and Ohio railroads run through it. The productions in 1870 were 11,597 bushels of wheat, 226,057 of corn, 14,892 of sweet potatoes, and 2,546 bales of cotton. Capital, Corinth.