Mashonaland
a country in the interior of Africa. It forms part of British Rhodesia, and is situated N. E. of Matabeleland. It consists of very fertile plateaux and plains, watered by_numerous rivers flowing partly to the Zambezi and partly to the Sabi. See RHODESIA.
MASON AND DIXON'S LINE in United States history, a line popularly regarded as dividing the slaveholding from the non-slaveholding States, and to have run due E. and W. In reality it ran for more than one-third of its length between two slave States, Maryland and Delaware, and a small part of it is an arc of a circle. It was run by two English engineers, Charles Mason and Jeremiah Dixon, between the years 1764 and 1767, for the purpose of settling the disputed boundaries between Maryland on the one side and Pennsylvania and Delaware on the other.