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Pearl, river, United States

(Encyclopedia)Pearl, river, 485 mi (781 km) long, rising in E Miss. and flowing S to Lake Borgne, an inlet of the Gulf of Mexico; its lower section (116 mi/187 km) forms the Miss.-La. boundary. Above Jackson, Miss....

Pecos, city, United States

(Encyclopedia)Pecos pāˈkəs [key], city (1990 pop. 12,069), seat of Reeves co., W Tex., on the Pecos River; inc. 1903. It is a railroad and highway junction and the market for an extensive ranch and irrigated far...

Pecos, river, United States

(Encyclopedia)Pecos, river, 926 mi (1,480 km) long, rising in N N.Mex. near the Truchas peaks and flowing SE across E N.Mex. and W Tex. to the Rio Grande; drains c.38,300 sq mi (99,200 sq km). In New Mexico, dams a...

Penobscot, river, United States

(Encyclopedia)Penobscot pənŏbˈskŏt [key], river, 350 mi (563 km) long, rising in numerous lakes in central Maine and flowing generally east in four branches, uniting, then flowing S into Penobscot Bay; longest ...

Pontiac, city, United States

(Encyclopedia)Pontiac, industrial city (1990 pop. 71,166), seat of Oakland co., SE Mich., on the Clinton River; founded 1818 by promoters from Detroit, inc. as a city 1861. Industries developed early and expanded a...

Plymouth, city, United States

(Encyclopedia)Plymouth. 1 Uninc. town (1990 pop. 45,608), seat of Plymouth co., SE Mass., on Plymouth Bay; founded 1620. Diverse light manufacturing is important to the economy. The town, with summer resort facilit...

Prescott, city, United States

(Encyclopedia)Prescott, city (1990 pop. 26,455), alt. 5,389 ft (1,643 m), seat of Yavapai co., central Ariz. in a mineral-rich area; inc. 1883. It is a mining and ranching center, a summer resort, and the headquart...

Piedmont, city, United States

(Encyclopedia)Piedmont, city (1990 pop. 10,602), Alameda co., W Calif., a suburb of Oakland; inc. 1907. It is a hilly, residential city. Many of its homes enjoy a spectacular view of the San Francisco Bay area. ...

Philadelphia, city, United States

(Encyclopedia)Philadelphia, city (2020 pop. 1,603,797), coextensive with Philadelphia co., SE Pa., on the Delaware River c.100 mi (160 km) upstream at the influx of t...

Roth v. United States

(Encyclopedia)Roth v. United States, case decided in 1957 by the U.S. Supreme Court. Samuel Roth of New York City was convicted of mailing obscene materials. On appeal his conviction was affirmed by the Supreme Cou...