KLAATTAU, a circle of the Austrian kingdom of Bohemia, extending over 1012 square miles, and comprehending twenty-six cities and towns, 638 villages and hamlets, with 22,058 houses, inhabited by 145,824 persons. The capital, a city of the same name, situated on the river Bradlenka, contains 527 houses, and 4126 inhabitants, who are employed in making woollen cloths and hosiery, and in working in some marble and serpentine quarries near it. Long. 13. 16. 55. E. Lat. 49. 23. 42. N.