Zwolle
the capital of the Dutch province of Overyssel on the Zwarte Water; 25 miles N. of Zütphen; was once a strong fortress with 11 bastions and three forts. It is a handsome, wellbuilt city, with three fine suburbs. Its corn market is one of the best in Holland. Its chief buildings are St. Michael's Church, a large and splendid building with a famous organ, the government buildings with the provincial archives, the town hall, and the courts of justice. The town has a Latin school, a school of navigation, an industrial school, a public library with rare books on geography and local history, a museum of natural history, a theater, etc. Zwolle has communication with the sea by means of the Willemsvaart canal. It manufactures oil, spirits, iron goods, and linens, carries on shipbuilding, and a trade in corn and cattle. In a monastery in the neighborhood Thomas à Kempis lived and died. Zwolle was a member of the Hanseatic League. Pop. about 35,000.
ZYGOPHYLLACEÆ, a natural order of polypetalous dicotyledons, consisting of 17 genera and upward of 100 species of shrubs or herbs with more or less jointed stems, flowers on auxiliary pe- ZYRIANOVSK duncles, and generally white, red or yellow, sepals and petals mostly five, and a dry fruit often separating into cocci. The species are widely dispersed over the tropical and sub-tropical zones, a few also occurring in temperate climates. In the type genus Zygophyllum, the leaves are opposite and consist of two leaflets (Greek zugan, "a yoke," and phyllon, "a leaf"). Z. fabago has vermifuge properties and its flower buds serve as a substitute for capers. Z.coccineum has aromatic seeds employed by the Arabs in place of pepper. The wood called lignum vitæ is the most important product of the order.