Cyclone, a storm of wind moving in immense whirls, and at the same time sweeping onward over the surface. Cyclones are usually 200 to 300 m. in diameter, sometimes more than 1,000 m. Their central point is calm, and this moves forward from 2 to 40 m. an hour. These storms originate outside the equatorial belt between the tropics, and move toward the poles. In the southern hemisphere the rotation is in the same direction with the hands of a watch placed with the face upward; in the northern, the direction is reversed. (See Hurricane).


Cyclostomes, an order of myzont fishes. See Lamprey.


Cydnus, the ancient name of a river of Cili-cia, rising in the Taurus, and flowing through Tarsus into the Mediterranean sea a little below that town, from which it has received its modern name (Tersus). It was celebrated for the clearness and coolness of its waters, which in the opinion of the ancient physicians possessed medicinal virtues. The mouth of the Cydnus is now choked with sand and other alluvial deposits.


Cydonia, an ancient city of Crete, rival and enemy of Cnossus and Gortyna, but afterward allied with the former. It stood on the N. W. coast of the island, on the site of the modern Canea, and derived its name from the Cydo-nes, an aboriginal race who founded it. Afterward a colony of Zacynthians settled there. Next came the Samians in the 6th century B. C, and ultimately the Aeginetans, who seized the city. It was famous for quinces, which received from it their botanical name.


Cymbals (Gr.Cymbals 0500343 fromCymbals 0500344 hollow), brass musical instruments of percussion, consisting of two circular hollowed plates, from 6 to 12 inches in diameter, which are attached to the hands by leather bands, and played by being struck together. The instrument is of great antiquity, having been used in the worship of Cybele, Bacchus, Juno, and all the earlier deities of the Grecian and Roman mythology, and probably by the Jews and most of the eastern nations. It was usually made in the form of two half globes.


Cynjegirus, an Athenian warrior, who greatly distinguished himself at the battle of Marathon, 490 B. C. He was the son of Eupho-rion, and brother of Aeschylus. According to Herodotus, when the vanquished Persians were endeavoring to escape from the fatal field to their ships, he seized one of their triremes, and held on to it till his right hand was cut off. Later accounts exaggerate his exploits.


Cynoscephalae, the name of a range of mountains in Thessaly, in the district of Pelas-giotis, famous in history for two battles fought on it. The first was in 364 B. C, when the Thebans, though victorious over the Phereeans, lost their general Pelopidas. The other was in 197 B. 0., when the Roman consul Flami-ninus defeated and took prisoner Philip, king of Macedon.