Pearl River, a stream rising in "Winston co., Mississippi, in the E. central portion of the state. It flows S. "W. to Jackson, then S. S. E. to the 31st parallel of latitude, and thence S., forming the boundary between Louisiana and Mississippi, and emptying into the gulf of Mexico through Lake Borgne. It is more than 300 m. long. Its navigation is obstructed by sand bars and drift wood, but small boats ascend into Mississippi. Its chief tributary is the Bogue Chitto, which joins it in Louisiana.
Pecos, a S.W. county of Texas, formed in 1871, separated from Mexico on the south by the Rio Grande, and bounded N. E. by the Pecos river; area, about 11,500 sq. m. It is supposed to contain valuable minerals, but has been little explored. The valleys contain some good farming land, but the county is best adapted to grazing. Capital, Fort Stockton.
Pedacins Or Pedanins Dioscorides, a medical and botanical writer of the 1st or 2d century A. D., probably a native of Anazarbus in Cili-cia. He made collections of plants in Asia Minor, Greece, Italy, and Gaul, and wrote a treatise in five books on materia medica
a work which enjoyed the highest reputation until the 17th century. It is now chiefly valuable as illustrating the opinions of ancient physicians and giving some idea of their attainments in natural history. It has been translated into Arabic, Italian, Spanish, French, and German, and many editions of it have been published in Latin and Greek.
Peder Erasmus Muller, a Danish bishop, born in Copenhagen, May 29, 1776, died Sept. 16, 1834. He was educated at the university of Copenhagen, where, after visiting France and England, he was appointed professor of theology in 1801, and in 1830 bishop of Seeland. He published theological treatises and works on the language, literature, and history of Denmark and Iceland. The most celebrated is his "Library of the Sagas" (1816-'20), in which he gives an account of all the Icelandic sagas or tales. From 1805 to 1832 he was editor of the "Danish Literary Gazette" (Dansh Literatur Tidcnde).
Peder Olnf Brondsted, a Danish archaeologist, born near Horsens, Jutland, Nov. 17,1780, died in Copenhagen, June 26, 1842. He explored Greece in 1810 in company with other savants, and was appointed in 1813 professor at the Copenhagen university, and in 1818 agent of his government at Rome. He afterward explored Sicily and the Ionian islands, and after his return to Copenhagen in 1832 officiated as director of the royal cabinet of antiquities, as professor, and lastly as rector of the university. He left many writings, mostly in German, prominent among which are: Beitrage zur ddnischen Geschichte aus nordfranzosischen Manuscripten des Mittelalters (Copenhagen, 1817-'18); Untersuchungen in Griechenland (Paris, 1826-'30); Denlcwurdigkeiten aus Griechenland (Paris, 1833).