Mail routes 1825-1830, 158, 159.

Malaria, 91, 95.

Manufactures, 128, 129.

Maple sugar, 129.

Marietta, O., 71.

Marriage, mixed, 51;

without priest, 12.

Mary of the Incarnation, Mother, 11.

Maryland, settlers from, 91.

Mason and Dixon's line, 179.