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Chemical composition is not exactly known. times swept with terrible destruction of life over Europe and America. It produces severe and painful cramp, often quickly followed by death. It is now known to be due to a form of bacteria (q. v.), and recent epidemics have been checked by sanitary measures. color, and with a long, slender, curved bill and red legs. The Cornish chough is the sea-swallow. and brittle metal. Pota ium chromate and lead chromate (chrome red) are used in dyeing and calico-printing. Chrome yellow is used by paint¬ ers. Pure chromium is the most difficult to fuse of all the metals. Its compounds are much used in the arts, in painting and coloring. It forms four compounds with oxygen, and its chief ore and is chrome ironstone, found in America, Sweden, and and the Shetlands. a measure.] An instrument for the exact mea¬ sure ment of time. The name is commonly ap¬ plied to a portable time-keeper, in opposition to