Port Natal 3796 Porto the British navy; and has barracks and mili- tary storehouses. There* arc three graving docks beside the harbor, through which all the commerce of Mauritius passes. The city con- tains a Protestant and a Roman Catholic ca- thedral, royal college, observatory, and botan- ical gardens; p. 50,000. Port Natal, South Africa. See Durban. Porto Alegre, capital of the state of Rio Grande do Sul, Brazil, stands near the n. end of Lagoa dos Patos ('Lake of Ducks'). It is favorably situated at the convergence of five navigable rivers, and is connected with the bar of Rio Grande do Sul by the Lagoa dos Patos. Extensive harbor improvements make it accessible for large vessels. The city is laid out on modern lines, with well-built streets and large squares. Porto Alogre is the principal shipping point of Northern Rio Grande do Sul, the export trade amounting to $1,500,000 annually, and the import trade to $r i,000,000; p. ii 0,000. Port of Spain, chief town and port of Trinidad, West Indies. It has wide thorough- fares and handsome buildings, including a royal college, governor's^ house, and Protes- tant and Roman Catholic churches. In ac- tive trade it has supplanted St. Thomas, and numerous lines of ocean steamers call regu- larly ; p. 64,000. Portola, Caspar de, Spanish pioneer, who in 1769, with a small company, travelled from Mexico through the hitherto unexplored re- gions of California, and discovered the Bay of San Francisco. He founded a number of settlements, and became the first governor of California. In 1909 a commemorative pageant was held in San Francisco. Porto Maurizio, prov., Italy, bounded on the e. by Genoa, s. by the Mediterranean, and w. by France. Tt is mountainous through- out, belonging to the Maritime Alps. Fruit, wine, and olive oil are produced, and fresh-cut flowers arc exported, especially from San Remo. Area, 455 sq, m.; p. 160,000. Porto Maurizio, town, capital of Porto Maurizio province, picturesquely situated on a promontory. Surrounded by dense olive groves, the town is a favorite winter resort. It lias a well-sheltered harbor, and a brisk trade in olive oil; p. 8,000. Porto Novo, seaport, India, in South Ar- cot, Madras, on the Coromandel coast; 145 m. s, of Madras by rail. Here on July x, 1781, Sir Eyre Coote defeated Haider Ali, Porto Rico (Spanish Puerto Rico)) an is- land belonging to the United States, one of the West Indies and the easternmost and smallest of the Greater Antilles. Tt lies [,ooo m. e. oi Key West, and 75 m. e. of Haiti; total area of 3,435 sq. m. The coast line is compara- tively smooth, and extends for a distance of 360 m. During the winter the wind often blows with such violence on the n. coast that anchorage is dangerous, except in the port of San Juan. The entire surface of the island, save for a narrow coastal plain on the n. and a somewhat wider plain on the s., is a mass of mountains, ridges, hills, and peaks interspersed with deep valleys, high tablelands, precipitous canyons or ravines, and a few small interior plains. Several large rivers and numerous smaller streams flow from the central moun- tain range. None of the rivers is navigable for any great distance, but they are important sources of irrigation. The climate is equable and comparatively healthful. The mineral re- sources of the island are practically unexplored although the existence of extensive deposits of valuable ores ic known. Porto Rico is notable for the beauty and brilliancy of its flora, though the abundant forests which formerly clothed the mountain slopes have been destroyed in all but a few sections, held by the government as forest reserves. Porto Rico is essentially an agri- cultural country, and practically the entire population is engaged in agriculture or allied industries. To supply the water needed for crops, particularly for sugar cane, the chief product of the southern coast, extensive irri- gation is required. The staple agricultural products are sugar, coffee, tobacco, and fruits. Since the Ameri- can occupation, the cultivation of citrus fruits and pint'upples has made great progress, and there are now several thousand acres of fine orange and grapefruit groves in bearing, and a lesser number of acres devoted to pine- apples. Manufactures.—Manufacturing is con- cerned chiefly with the products of agricul- ture. Transportation.—Communication -is dif- ficult, owing to the mountainous configura- tion of the interior, but transportation facili- ties are excellent. The population of the island, according to the D, S. Census of 1040, is 1,869,225, San Jutm, thck capital and chief city, has a population of 160,247. Education.—The Porto Rican school sys- tem i» founded on American principles and comprises rural, elementary graded, continu- ation and high schools, as well as an excel-