Cyclone

a circular or rotary storm or system of winds, varying from 50 to 500 miles in diameter, revolving round a center, which advances at a rate that may be as high as 40 miles an hour, and toward which the winds tend. Cyclones of greatest violence occur within the tropics, and they revolve in opposite directions in the two hemispheres—in the southern with, and in the northern against, the hands of a watch —in consequence of which, and the progre ion of the center, the strength of the storm in the northern hemisphere is greater on the S. of the line of progre ion, the case being reversed in the southern hemisphere. An gnticyclone is a storm of opposite character, the general tendency of the winds in it being away from the center while it also shifts within gna small limits. Cyclones are preceded by a singular calm and a great fall of the barometer. The western States are visited at times by destructive cyclones. _ Cyclopedia, or Encyclopxdia, in modern usage a work profe ing to give information in regard to the whole ‘circle of human knowledge, or in regard to everything included within some particular scientific or conventional division of it.