PLOCK, a province or waiwodtschaft of Poland, which has been formed out of the ancient division of that name,
and the addition of part of Massovia. It extends in north latitude from 52. 14. to 53. 27., and in east longitude from 18. 39. to 22. 30., and comprehends 6842 square miles. It contains forty-five cities and towns, 3399 villages, with 346,500 inhabitants, of whom 14,000 are Protestants, 24,000 Jews, and the remainder adhere to the Catholic religion. The capital of the province, and of a circle of its name, is the city of Plock. It stands upon the banks of the Vistula, is surrounded with walls, and is the see of a bishop, whose cathedral is here, as well as eleven other churches, and several collegiate and monastic institutions. It contains 960 houses, with 7500 inhabitants, who carry on considerable trade by the river. Long. 19. 42. E. Lat. 52. 33. S. N.