Theiss

Theiss (Hun. Tisza), an important affluent of the Danube, and the chief river of Hungary, rises by two streams, the Black Theiss and the White Theiss, in the Carpathian Mountains. It winds 750 miles north-west, south-west, and finally southward, joining the Danube after running parallel to it for 300 miles. The Theiss has several large and navigable affluents, as the Maros and Bodrog. The lower part of its course is sluggish, and it has often inundated the plains, flooding the cities on its banks, such as Szegedin (q.v.). Much has lately been done to regulate the course and drain the marshes on its banks. The Theiss is extraordinarily rich in fish.