See Ross and Cromarty.
Rossano (anc. Roscianum), a town of S. Italy, about 3 m. from the gulf of Taranto, in the province and 28 m. N. E. of the city of Cosenza; pop. about 12,000. It is built upon a rocky hill at the foot of the Apennines, and surrounded by deep precipices. It is the seat of an archbishop, and has a fine cathedral, a castle, and a trade in oil, capers, and saffron. During the Gothic wars the ancient Roscianum was one of the strongest places in Bruttium.
Rossbach, a village of Prussian Saxony, 17 m. S. by W. of Halle, celebrated as the scene of the victory of Frederick the Great over the combined French and imperial army, commanded by the prince de Soubise, Nov. 5, 1757. The army of Frederick numbered only half of that of his opponents, the French being officered by noblemen who regarded the expedition as a pleasure excursion. Emboldened by his having retired from before the duke de Broglie's camp at Mühlhausen, the French and imperial army left a strong position to attack Frederick without having made a recon-noissance; but they were themselves attacked by surprise, and, though but one wing of the Prussians was engaged, soon broke and fled in the utmost disorder, leaving their whole artillery and baggage and 7,000 prisoners in the hands of the victor.
Rossiter Worthington Raymond, an American mining engineer, born in Cincinnati, April 27, 1840. He graduated at the Brooklyn polytechnic institute in 1858, and afterward spent three years in study at Heidelberg, Munich, and Freiberg. In 1864 he began practice in New York as a consulting engineer, and he has been since 1867 editor of the "American Journal of Mining" (afterward the "Engineering and Mining Journal"), since 1868 United States commissioner of mining statistics, and since 1870 lecturer on economic geology in Lafayette college, Easton, Pa. He was elected a vice president of the American institute of mining engineers in 1871, and president in 1872, '73, and '74. He has published annual reports of mining statistics from 1869 to 1875 inclusive, several of which have been republished as separate works; "The Children's Week," a volume of short stories (1871); "Brave Hearts," a novel (1873); and "The Man in the Moon and other Stories" (1874).
Rossoor Cusso Koosso, the Abyssinian name of the flowers and tops of Brayera anthelmin-tica, a small tree of the order rosaceae, growing on the high table land of Abyssinia. These are brought to Europe in a dry, compressed, greenish yellow mass. This drug has been long used by the natives of the country whence it comes as a remedy for tapeworm, and it has been introduced into European practice. It appears to act principally as a poison to the parasite, though it sometimes produces nausea or even vomiting and diarrhoea. It is given in the form of powder mixed with warm water in the dose of half an ounce for an adult. The active principle has not been determined with certainty, though the drug contains among other substances a resin, a volatile oil, a crystalliza-ble acid, and extractive matter.