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alunogen ... Amanita
		alunogen a sulfate mineral formed by sulfate solutions that attack aluminous minerals; alunogen is hydrated aluminum sulfate, formulated Al₂(SO₄)₃·18H₂O. It typically occurs as an efflorescence or crevice filling in pyrite-containing coal formations, shales, or slates, as well as in the gossan (weathered capping) of sulfide ore deposits and in volcanic fumarole ... Alushta tourist resort, Crimea, Ukraine, on the south coast of the Crimean Peninsula. It is the site of a settlement dating from the 6th century AD; in the 14th century it was a Genoan stronghold. Tourism, based on the fine beach and relatively cool summers, developed in the late 19th century. ... Alva city, seat (1907) of Woods county, northwestern Oklahoma, U.S., on Salt Fork of the Arkansas River near the Kansas border. Established as a land office in 1893 at a Santa Fe Railway stop, it was named for Alva Adams, a railroad attorney and governor of Colorado (1887-89). It is a ... Alvar any of a group of South Indian mystics who in the 7th to 10th century wandered from temple to temple singing ecstatic hymns in adoration of the god Vishnu. The songs of the Alvars rank among the world's greatest devotional literature. Among the followers of Siva, the counterpart of the ... Alvarado, Pedro de a conqueror of Mexico and Central America for Spain. Alvarez Bravo, Manuel photographer who was most noted for his poetic images of Mexican people and places. He was part of the artistic renaissance that occurred after the Mexican Revolution (1910-20). Although he was influenced by international developments, notably Surrealism, his art remained profoundly Mexican. Alvarez Quintero, Serafin and Joaquin Spanish brothers who collaborated in almost 200 dramas depicting the life, manners, and speech of Andalusia. Their work was among the most popular in Spain during the early 20th century and greatly added to the revival of the Spanish theatre. Their dramas are remarkable for a vivacious and skilled presentation. ... Alvarez, A. British novelist, essayist, and critic whose works explore the interaction of public and private forces that shape personality and behaviour. Alvarez, Juan revolutionary leader for more than 40 years, before and after the end of Spanish rule, and provisional president of Mexico in 1855. Alvarez, Luis W. American experimental physicist who was awarded the Nobel Prize for Physics in 1968 for work that included the discovery of many resonance particles (subatomic particles having extremely short lifetimes and occurring only in high-energy nuclear collisions). Alvaro, Corrado Italian novelist and journalist whose works investigated the social and political pressures of life in the 20th century. His works were often set in Calabria, southern Italy. Alvear, Marcelo T de statesman and political leader who served as president of Argentina from 1922 until 1928. Alvensleben-Erxleben, Gustav, Graf von Prussian general and adjutant general who was the chief personal adviser to King (later Emperor) William I. alveolar proteinosis respiratory disorder caused by the filling of large groups of alveoli with protein and lipid (fat) particles. The alveoli are air sacs, minute structures in the lungs in which the exchange of respiratory gases occurs. The gas molecules must pass through a cellular wall, the surface of which is generally ... Alvsborg former lan (county) of southwestern Sweden, located to the west and south of Lake Vanern. Formed as a county in 1634, it was merged with the counties of Goteborg och Bohus and Skaraborg in 1998 to form the county of Vastra Gotaland. Alwar city, northeastern Rajasthan state, northwestern India. The city is surrounded by a wall and moat and is dominated by a fort on a conical hill against a backdrop of a range of hills. Alwar was made the capital of Alwar princely state in 1775; it contains the 14th-century tomb of ... Alyattes king of Lydia, in west-central Anatolia (reigned c. 610-c. 560 BC), whose conquest created the powerful but short-lived Lydian empire. Alypius writer on music whose Eisagoge mousike (Introduction to Music) contains a comprehensive summary of the complex system of Greek scales and their transpositions and includes tables of their method of notation. The treatise was published in 1616 by I. Meursius and in 1652, with the tables of notation, by M. ... Alytus city, southern Lithuania. It lies along the Neman (Lithuanian: Nemunas) River, 37 miles (60 km) south of Kaunas. The city dates from the 14th century. In the 20th century it developed as an industrial centre, with factories producing refrigerators, chemical products, linen, and clothing. Alytus is a rail terminus and ... Alzheimer disease degenerative brain disorder that develops in mid to late adulthood. It results in a progressive and irreversible decline in memory and a deterioration of various other cognitive abilities. The disease is characterized by the destruction of nerve cells and neural connections in the cerebral cortex of the brain and by ... Alzira city, Valencia provincia, in the comunidad autonoma ("autonomous community") of Valencia, eastern Spain. It lies in the Ribera district, south of the city of Valencia. It originated as the Iberian settlement of Algezira Sucro ("Island of Sucro"), so named because of its insular position between two branches of the Sucro ... Alzon, Emmanuel d' French ecclesiastic who founded the order of Augustinians of the Assumption (or Assumptionists). AM variation of the amplitude of a carrier wave (commonly a radio wave) in accordance with the characteristics of a signal, such as vocal or musical sound composed of audio-frequency waves. See modulation. Amadeus king of Spain from Nov. 16, 1870, until his abdication on Feb. 11, 1873, after which the first Spanish republic was proclaimed. Amadeus Quartet English string quartet (1948-87), one of the most durable and highly regarded quartets of Europe. The quartet was formed in 1947, the result of an internment-camp meeting during World War II between three young Austrian refugees-Peter Schidlof, the group's violist; Norbert Brainin, a violinist; and Siegmund Nissel, also a violinist. ... Amadeus VI count of Savoy (1343-83) who significantly extended Savoy's territory and power. Amadeus VII count of Savoy (1383-91), during whose short rule the county of Savoy acquired Nice and other Provencal towns. Amadeus VIII count (1391-1416) and duke (1416-40) of Savoy, first member of the house of Savoy to assume the title of duke. His 42-year reign saw the extension of his authority from Lake Neuchatel on the north to the Ligurian coast, and under the title of Felix V he was an antipope ... Amadeus, Lake salty mud basin in southwestern Northern Territory, Australia. The lake occupies a shallow trough filled with sediments washed from the MacDonnell (north) and Musgrave (south) ranges. It intermittently contains a few inches of water and at such times may measure as much as 90 miles (145 km) long and 12 ... Amadi, Elechi novelist and playwright best known for works that explore the role of the supernatural in Nigerian village life. Amadis of Gaul prose romance of chivalry, possibly Portuguese in origin. The first known version of this work, dating from 1508, was written in Spanish by Garci Ordonez (or Rodriguez) de Montalvo, who claimed to have "corrected and emended" corrupt originals. Internal evidence suggests that the Amadis had been in circulation since the ... Amado, Jorge novelist whose stories of life in the Brazilian northeast won international acclaim. Amagasaki city and industrial suburb of the Osaka-Kobe (Hanshin) metropolitan area, Hyogo ken (prefecture), Honshu, Japan. In the feudal period it was a castle town. During the 20th century it attracted large, modern factories, formerly geared to wartime production, to produce iron and steel goods, electrical machinery, transport vehicles, and chemicals. ... amakihi (Loxops virens), perhaps the most common native songbird in Hawaii, a member of the Hawaiian honeycreeper family, Drepanididae (order Passeriformes). It is 12 cm (5 inches) long, with yellow body, black eye-mark, and rather short, slightly curved bill. It feeds on insects and small fruits in brushland and forest, and ... Amakusa Islands archipelago off western Kyushu, Japan, in the Amakusa Sea. Administered by Kumamoto ken (prefecture), it includes about 100 islands, the largest of which are Kami ("Upper") Island and Shimo ("Lower") Island. There is little farming because of the rough, mountainous terrain, and there are few industries, but forestry, orange cultivation, ... Amalaric king of the Visigoths (526-531), son of Alaric I. Amalasuntha daughter of Theodoric the Great, Ostrogothic king of Italy, and queen and regent of the Ostrogoths (526-534). Amalekite member of an ancient nomadic tribe, or collection of tribes, described in the Old Testament as relentless enemies of Israel, even though they were closely related to Ephraim, one of the 12 tribes of Israel. The district over which they ranged was south of Judah and probably extended into northern ... Amalfi town and archiepiscopal see, Salerno provincia, Campania regione, southern Italy. It lies in the ravine of the Mulini Valley, along the Gulf of Salerno, southeast of Naples. Although it was known in the 4th century, Amalfi was of little importance until the mid-6th century under the Byzantines. As one of ... amalgam alloy of mercury and one or more other metals. Amalgams are crystalline in structure, except for those with a high mercury content, which are liquid. Known since early times, they were mentioned by Pliny the Elder in the 1st century AD. In dentistry, an amalgam of silver and tin, with ... Amalgamated Clothing and Textile Workers Union former union of garment and apparel workers in the United States and Canada. It was formed in 1976 by the merger of the Amalgamated Clothing Workers of America (ACWA), a large union representing workers in the men's clothing industry, with the Textile Workers Union of America, a smaller union founded ... Amalgamated Engineering and Electrical Union the leading trade union in the manufacturing sector of the United Kingdom, created in 1992 through the merger of the Amalgamated Engineering Union (AEU) with the Electrical, Electronic, Telecommunication and Plumbing Union (EETPU). Amalienborg architectural complex in Copenhagen, Den., built during the reign (1746-66) of King Frederick V and comprising the four buildings of the Amalienborg royal palace and the octagonal courtyard surrounded by them. The complex was designed and constructed by the Danish architect Nicolai Eigtved, who also designed numerous other buildings in ... Amalric I king of Jerusalem from 1163 to 1174, a strong ruler who protected the rights of vassals and helped prevent Muslim unity around the Holy Land. Amalric II king of Cyprus (1194-1205) and of Jerusalem (1197-1205) who ably ruled the two separated kingdoms. Amalthaea in Greek (originally Cretan) mythology, the foster mother of Zeus, king of the gods. She is sometimes represented as the goat that suckled the infant god in a cave in Crete, sometimes as a nymph who fed him the milk of a goat. This goat having broken off one of ... Amalthea small, potato-shaped moon of the planet Jupiter and the only Jovian satellite other than the four discovered by Galileo in 1610 to have been found by direct visual observation (as opposed to photography or electronic imaging) from Earth. It was discovered in 1892 by the American astronomer Edward Emerson Barnard ... Amambai Mountains highlands in western Mato Grosso do Sul state, Brazil, and eastern Paraguay. Amami Great Island largest island in the Amami chain of the northern Ryukyu Islands, in Kagoshima ken (prefecture), Japan. Most of the 274-square-mile (709-square-km) island is mountainous and forested. A quasi-national park protects landscapes at the higher elevations. Mount Yuwan is the highest mountain at 2,276 feet (694 metres). The ... Amana Colonies settlement in Iowa county, east-central Iowa, U.S. It lies near the Iowa River, 20 miles (32 km) west-northwest of Iowa City, and comprises a group of seven small villages: Amana, East Amana, Middle Amana, High Amana, West Amana, South Amana, and Homestead. Amanita genus of about 100 species of mushrooms of the family Amanitaceae, order Agaricales, some of which are poisonous to humans. The amanitas typically have white spores, a ring on the stem slightly below the cap, a veil (volva) torn as the cap expands, and a cup from which the stalk ...