Chlorosis

[Gr. chloros, green.] ( Med.) A disease to which young females are subject, and which is characterized by a peculiar sallow or greenish-yellow hue of the countenance, and hence known as the green sickne . It is usually attended with great debility, palpitations of the heart, difficulty of breathing, pains in the and rather stimulating diet, tonics, sea-bathing, and agreeable society. ( Bot .) See SECTION II. Chlorot'ic, a . Pertaining to, or affected by, chlorosis. Chlo'rous Acid, n. ( Chem .) One of the oxides of chlorine. It is a dark greenish-yellow gas, po e ing a pungent odor and bleaching properties. If heated to 135° Fahr. it explodes, being resolved into chlorine and oxygen; it also explodes when placed in contact with combustible substances. By intense cold and pre ure it may be reduced to the form of a red liquid. Water di olves about six times its volume of the gas, the solution varying in color from green to yellow, according to the degree of saturation. C. A. has powerful bleaching properties, and combines with bases to form chlorites, many of which are crystallizable. It is expelled from its combinations by carbonic acid. It is prepared by heating nitric acid, chlorate of potash, and arsenious acid. The gas must be collected by displacement, as it acts both on mercury and water. Form . ClOg. Chlorox'ylon, n . ( Bot .) A gen. of trees, ord. Cedrela cee . All the species have dotted leaves, which yield by distillation an e ential oil. C. Swietenia, a native of East India, furnishes the yellow, fragrant, close-grained, heavy and durable satin-wood much estimated by cabinet-makers. Chmielnicki, ( kme -el-nits'ke,) BOGDAN, a Co ack chief, B. 1593. In 1648, he put himself at the head of a formidable combination of Co acks and Tartar tribes, and carrying on a short but sanguinary war against the Polish monarchs Ladislaus 1V. and John Casimir, made himself master of the Ukraine, and handed over the Co ack people to the Ru ian czars. D. 1657. Choak, v . a . and n. An old spelling of CHOKE, 9. v. Cho'anites, n . pl. ( Pal .) A genus of extinct Zoöphytes, so called on account of their fo il skeleton or polypary, presenting in general a funnel-shaped figure. They appear to have been common in the upper beds of the chalk. Choate, RUFUS, an eminent American advocate and jurist, B. at E ex, Ma ., 1799. Admitted to the bar in 1824, he commenced the practice of law at Danvers; pa ed some time at Salem, and removed to Boston in 1834, having previously occupied a seat in the State senate and in the house of representatives as a member of Congre . In 1841 he succeeded Mr. Webster in the U. States senate, resigning in 1845, and with these exceptions he has been exclusively engaged in the profe ion of the law. Ilis claims to literary notice rest upon his speeches in congre and several addre es on public occasions, which have been printed. Of his speeches, the most noted ones are those on the tariff, the Oregon question, and the annexation of Texas. But it is le to his literary labors than to his forensic performances as a lawyer that Mr. C. owes his celebrity. Rapid and impetuous, self-po e ed and remarkable for consummate judgment and unerring tact in the management of causes, the neatne of his statements, the grace and accuracy of his language, the quaint humor with which he contrives to decorate the dryest and seemingly the most hopele subject, the charm of a brilliant and persuasive rhetoric, always commanded the admiration of his hearers and the sympathies of the jury in cases where the law and the facts forbade him to win the a ent of their understanding. As a lawyer, Mr. C. stood for many years at the head of the bar in New England, and as an advocate, especially, no man perhaps in the whole country enjoyed so high and wide a reputation. D. 1858. Choban'do, or SEBANDO, a town and Chinese frontier post of Thibet, 230 m. E.N.E. of La a; Lat. 30° 17′ N., Lon. 95° 40′ Ε. Chocchu'ma, in Mi i ippi, a village near Yallobusha River, in the S.E. part of Tallahatchie co.