McNAIRY COUNTY, situated on the south boundary of Tennessee. Area, 960 square miles. Seat of justice, Purdy. Pop. in 1830, 5,697; in 1840, 9,385; in 1850, 12,864.

McMINN COUNTY, situated in the southeast part of Tennessee. Area, 608 square miles. Face of the country hilly; soil varied. Seat of justice, Athens. Pop. in 1820, 1,623; in 1830, 14,497; in 1840,12,719; in 1850, 13,906.

MAURY COUNTY, situated in the central part off Tennessee. Area, 750 square miles. Face of the country, hilly; soil fertile. Seat of justice, Columbia. Pop. in 1810, 10,359; in 1820, 22,141; in 1830, 28,153; in 1840, 28,186; in 1850, 29,520.

MARSHALL COUNTY, situated toward the south part of Tennessee. Area, 200 square miles. Seat of justice, Lewisburgh. Pop. in 1840, 14,555; in 1850, 15,616.

MARION COUNTY, situated on the south boundary of Tennessee, and traversed by Tennessee river. Area, 600 square miles. Face of the country hilly and mountainous. Seat of justice, Jasper. Pop. in 1820, 3,888; in 1830, 5,516; in 1840, 6,070; in 1850, 6,314.

MADISON COUNTY, situated in the west part of Tennessee. Area, 670 square miles. Seat of justice, Jackson. Pop. in 1830, 11,549; in 1840, 16,530; in 1850, 21,470.

MACON COUNTY, situated on the north boundary of Tennessee. Area, ------- square miles. Seat of justice, Lafayette. Pop. in 1850, 6,948.

LINCOLN COUNTY, situated on the south boundary of Tennessee. Area, 650 square miles. Face of the country diversified; soil productive. Seat of justice, Fayetteville. Pop. in 1810, 6,104; in 1820, 14,761; in 1830, 22,086; in 1840, 21,493; in 1850, 23,492.

LEWIS COUNTY, situated toward the south part of Tennessee. Area, ------- square miles. Seat of justice, Newburgh. Pop. in 1850, 4,438.

LAWRENCE COUNTY, situated on the south boundary of Tennessee. Area, 680 square miles. Seat of justice, Lawrenceburgh. Pop. in 1820, 3,271; in 1830, 5,411; in 1840, 7,121; in 1850, 9,280.