Luks, George

Born in a coal-mining region of north-central Pennsylvania, Luks studied first at the Pennsylvania Academy of the Fine Arts, Philadelphia, and later in Germany,

Calabar

Formerly  Old Calabar  town and port, capital of Cross River State, southeastern Nigeria. It lies along the Calabar River, 5 miles (8 km) upstream from that river's entrance into the Cross River estuary. Settled in the early 17th century by the Efik branch of the Ibibio people, the town became a centre for trade between white traders on the coast and natives farther inland. Fish, cassava, bananas, palm

Ribble Valley

Borough (district), administrative county of Lancashire, northwestern England, along the county's eastern border, extending into the western Pennine uplands. The southern part of the borough, including the lower Ribble valley and the two largest towns, Clitheroe and Longridge, lies in the historic county of Lancashire. The remainder of the mostly rural borough, including

Faguibine, Lake

French  Lac Faguibine,   isolated lake in Mali, west of Timbuktu (Tombouctou). It lies north of the Niger River in the Macina depression, and it is reached by branches of the Niger in times of flood. At high water it reaches a length of about 50 miles (80 km).

Elbe River

By means of the Elbe and its connecting waterways, vessels from Hamburg can navigate to Berlin, the central and southern sections of eastern Germany, and the Czech Republic. The Mittelland Canal, a short distance below Magdeburg, runs westward about 200 miles to the Dortmund–Ems Canal, carrying barges of up to 1,000 tons to the German industrial cities of Osnabrück, Hannover,

Aethelbald

King of the Mercians from 716, who became the chief king of a confederation including all the Anglo-Saxon kingdoms between the River Humber and the English Channel. His predominance was made possible by the death of the strong king Wihtred of Kent (725) and the abdication of Ine of Wessex (726). During Aethelbald's reign, London passed from East Saxon to Mercian control.

Aragua

Estado (“state”), northern Venezuela. It is bounded north by the Caribbean Sea, east by the Distrito Federal and Miranda state, south by Guárico state, and west by Carabobo state. Aragua consists largely of two Andean ranges separated by an intermontane basin, in which lies Lake Valencia. Henri Pittier National Park (413 square miles), with its exceptionally rich and varied

Minaret

(Arabic: “beacon”), in Islamic religious architecture, the tower from which the faithful are called to prayer five times each day by a muezzin, or crier. Such a tower is always connected with a mosque and has one or more balconies or open galleries. At the time of the Prophet Muhammad, the call to prayer was made from the highest roof in the vicinity of the mosque. The earliest minarets

Zambezi River, Kariba and Cahora Bassa schemes

The Kariba Dam harnesses the Zambezi at Kariba, Zimb., 300 miles below Victoria Falls. A concrete-arch dam with a maximum height of 420 feet and a crest length of 1,900 feet carries a road connecting the Zambian and Zimbabwean banks of the gorge. Six floodgates permit a discharge of some 335,000 cubic feet of water per second. Both Zambia and Zimbabwe obtain most of their electricity from

Carlisle, Lucy Hay, Countess Of

The second daughter of Henry Percy, 9th earl of Northumberland, she married James Hay (the earl of Carlisle from 1622) and became a conspicuous figure at the court of Charles I. The King's adviser,

Ambrym

Also spelled  Ambrim,   island of Vanuatu, southwestern Pacific Ocean. It has an area of 257 sq mi (665 sq km) and is known for its two active volcanoes: Mt. Marum, 4,167 ft (1,270 m), which last erupted in 1973; and Mt. Benbow, 3,720 ft, which had major eruptions in 1894, 1913, 1929, 1942, 1950, 1972 and 1973. The 1950 eruption was serious enough to warrant the evacuation of several hundred persons for resettlement on Éfaté. The island produces copra. Pop. (1979) 6,311.

Strain Theory

In chemistry, a proposal made in 1885 by the German chemist Adolf von Baeyer that the stability of carbocyclic compounds (i.e., those of which the molecular structure includes one or more rings of carbon atoms) depends on the amount by which the angles between the chemical bonds deviate from the value (109°28¢) observed in compounds not containing such rings. The amount of deviation

Sinkiang, Uygur Autonomous Region Of, The economy

Because of the dry climate, most of the cultivated land in Sinkiang depends entirely on irrigation. The various nationalities in the region have had rich experience in water conservancy techniques, of which the wells of the qanat system in the Turfan and Ha-mi depressions are a fine example. Since the 1950s, these have been greatly supplemented with canals and reservoirs,

Puig, Manuel

Puig spent his childhood in a small village on the pampas, but moved at age 13 to Buenos Aires, where he pursued his high school and university studies.

Gladstone, William Ewart

Gladstone's first Cabinet (1868–74) was perhaps the most capable of the century. Its prime minister tried to supervise the work of each department, devoting his main efforts to Irish and foreign policy. The Irish Protestant church was successfully disestablished in 1869, and a first attempt to grapple with oppressive landlordism in Ireland was made unsuccessfully in 1870; abroad,