Ivan Illich was an Austrian philosopher and Roman Catholic priest known for his radical polemics arguing that the benefits of many modern technologies and social arrangements were illusory and that, still further, such developments undermined humans’ self-sufficiency, freedom, and dignity. Mass

Nostratic hypothesis: …the work of the Russian Vladislav M. Illich-Svitych, who made a detailed case in the mid-1960s for the relatedness of the four above-named groups, together with Kartvelian and Dravidian. He also offered a detailed but still incomplete reconstruction of Proto-Nostratic. Important contributions to this theory were also made by the…

Odesa: …new outport was built at Ilichevsk, 12 miles (20 km) to the south. Odesa is the base of a fishing fleet as well as the chief operational hub of the Ukrainian Navy. The city’s rail communications are good to all parts of Ukraine, Moldova, and Romania. Odesa is a large…

Schisandraceae: Schisandraceae and the former family Illiciaceae were previously placed in the order Illiciales, but the taxonomy of the group was revised by the Angiosperm Phylogeny Group under the APG III system.

Schisandraceae: …previously placed in the order Illiciales, but the taxonomy of the group was revised by the Angiosperm Phylogeny Group under the APG III system.

Archie Mayo: Films of the 1930s: The controversial Illicit (1931) featured Barbara Stanwyck as a woman who resists marrying her boyfriend (James Rennie) until the resulting scandal compels her to wed, while Svengali (1931) was a weak adaptation of George du Maurier’s novel Trilby, despite an effective performance by John Barrymore

illicit antiquities, archaeological objects that have been illegally excavated or exported from their country of origin for monetary gain. Most countries place sovereign claims on their archaeological heritage. In countries with strong patrimony laws, it is illegal for an unauthorized individual to

fallacy: Formal fallacies: …be cited, that of the fallacy of illicit major (or minor) premise, which violates the rules for “distribution.” (A term is said to be distributed when reference is made to all members of the class. For example, in “Some crows are not friendly,” reference is made to all friendly things…

fallacy: Formal fallacies: …fallacy of illicit major (or minor) premise, which violates the rules for “distribution.” (A term is said to be distributed when reference is made to all members of the class. For example, in “Some crows are not friendly,” reference is made to all friendly things but not to all crows.)…

money laundering: Law enforcement: …the issue: the United Nations Convention Against Illicit Traffic in Narcotic Drugs and Psychotropic Substances of 1988, which for the first time provided that the laundering of proceeds from drug trafficking can be considered an autonomous crime; the Council of Europe Convention on Laundering, Search, Seizure and Confiscation of the…

paracanthopterygian: Life cycle and reproduction: Females have an illicium, or “fishing pole,” which is a modified spine of the dorsal, or back, fin that has moved forward onto the top of the head. At the tip of the illicium is a fleshy enlargement, the esca, used to lure prey within range of capture.…

Schisandraceae: The genus Illicium, with 42 species, was formerly placed in the now-defunct family Illiciaceae. It consists of shrubs and trees having evergreen, aromatic leaves and bisexual flowers, the inner petals of which grade gradually into stamens (male pollen-producing structures). The female portion of the flower consists of…

star anise, dry fruits of the star anise tree (Illicium verum), used as a spice and source of pharmaceutical chemicals. It is one of the ingredients in China’s famed five spice powder. The plant is indigenous to the southeastern part of China and to Vietnam. The flavour and uses of the fruit are

papermaking: Improvements in materials and processes: In 1800 Moritz Friedrich Illig in Germany discovered that paper could be sized in vats with rosin and alum. Although Illig published his discovery in 1807, the method did not come into wide use for about 25 years.

Nevado Illimani, snowcapped mountain peak, 21,004 feet (6,402 metres) in elevation, just south of La Paz, Bolivia’s administrative capital. It overlooks the city and forms part of the Cordillera

fishing: Early history: …1905, when English textile magnate Holden Illingworth filed the first patent on the fixed-spool, or spinning, reel. In this kind of reel, the spool permanently faces toward the tip of the rod, and the line peels off during the cast. The increased casting distance afforded by the spinning reel—and facilitated…

Illinoian Glacial Stage, major division of geologic time and deposits in North American during the Pleistocene Epoch (about 2,600,000 to 11,700 years ago). The Illinoian, a time of widespread continental glaciation, follows the Yarmouth Interglacial Stage and precedes the Sangamon Interglacial

Illinois, a confederation of small Algonquian-speaking North American Indian tribes originally spread over what are now southern Wisconsin and northern Illinois and parts of Missouri and Iowa. The best-known of the Illinois tribes were the Cahokia, Kaskaskia, Michigamea, Peoria, and Tamaroa. Like

Illinois, constituent state of the United States of America. It stretches southward 385 miles (620 km) from the Wisconsin border in the north to Cairo in the south. In addition to Wisconsin, the state borders Lake Michigan to the northeast, Indiana to the east, Kentucky to the southeast, Missouri

canals and inland waterways: United States: Developments included the Illinois-Michigan Canal, connecting the two great water systems of the continent, the Great Lakes and the Mississippi. Entering Lake Michigan at Chicago, then a mere village, the canal triggered the city’s explosive growth. Several canals were constructed subsequently to link up with the Erie and…

construction: Emergence of design professionals: …much later, beginning with the Illinois Architects Act of 1897. Concurrent with the rise of professionalism was the development of government regulation, which took the form of detailed municipal and national building codes specifying both prescriptive and performance requirements for buildings.

University of Illinois, state system of higher education in Illinois, U.S. It consists of three campuses, the main campus in the twin cities Champaign and Urbana and additional campuses in Chicago and Springfield. The universities are teaching and research institutions with land-grant standing and

Zion: Illinois Beach State Park is adjacent to the north and south. North Point Marina in nearby Winthrop Harbor is the largest marina on the Great Lakes. Inc. 1902. Pop. (2000) 22,866; (2010) 24,413.

Illinois Central Railroad (IC), former U.S. railroad founded in 1851 that expanded service from Illinois to much of the Midwest before merging with the Canadian National Railway Company (CN) in 1999. With its charter in 1851, the Illinois Central Railroad was the first of many railroads to receive

natural resources law: Public trust doctrine: In Illinois Central Railroad Co. v. Illinois (1892), for example, the Supreme Court of the United States voided a legislative grant privatizing Chicago’s commercial waterfront area on Lake Michigan, holding that the legislation was in derogation of trust responsibilities to govern so as to ensure public…

Jacksonville: Illinois College (founded there in 1829 and affiliated with the Presbyterian church and the United Church of Christ) was the first in the state to graduate a college class (1835) and to open a medical school (1843). Other educational institutions included the Jacksonville Female Academy…

McCollum v. Board of Education, case in which the U.S. Supreme Court on March 8, 1948, ruled (8–1) that an Illinois public school board had violated the First Amendment’s establishment clause when it allowed religious instruction during school hours and on school property. In 1940 members of

Skokie: …stories, and in 2009 the Illinois Holocaust Museum and Education Center opened in the village. More than one-fifth of Skokie’s current residents are of Asian descent. The North Shore Center for the Performing Arts in Skokie (1996) showcases theatre and music performances. Inc. 1888. Pop. (2000) 63,348; (2010) 64,784.

University of Illinois, state system of higher education in Illinois, U.S. It consists of three campuses, the main campus in the twin cities Champaign and Urbana and additional campuses in Chicago and Springfield. The universities are teaching and research institutions with land-grant standing and

University of Illinois, state system of higher education in Illinois, U.S. It consists of three campuses, the main campus in the twin cities Champaign and Urbana and additional campuses in Chicago and Springfield. The universities are teaching and research institutions with land-grant standing and

Wheaton College, private, coeducational liberal arts college in Wheaton, Illinois, U.S. Wheaton College began as a preparatory school, the Illinois Institute, built by Wesleyan Methodists in 1854. It became a college in 1860 and was renamed for an early donor, Warren L. Wheaton, who also cofounded

Illinois Institute of Technology, private, coeducational institution of higher learning in Chicago, Illinois, U.S. It dates to 1890, when the Armour Institute of Technology was founded (its first classes were held in 1893). The institute owes its heritage to a sermon by Chicago minister Frank

Illinois River, navigable stream of northern and central Illinois, U.S. It is formed by the junction of the Des Plaines and Kankakee rivers in Grundy county, about 10 miles (16 km) southwest of Joliet. It flows generally west across the state until just north of Hennepin, where it turns abruptly

Julia Clifford Lathrop: …took a place on the Illinois Board of Charities. It was her first opportunity to undertake the sort of arduous, detailed, and passionately devoted work that would come to characterize her career. Lathrop immediately began a personal inspection of all 102 county almshouses and farms in the state. She interrupted…

Illinois State University, public, coeducational university in Normal, Illinois, U.S. Established in 1857, the university is the oldest public institution of higher learning in the state. Abraham Lincoln drafted the documents that established the school, which was among the first normal

Illinois River: …to be used when the Illinois Waterway (linking the Chicago River, the Chicago Sanitary and Ship Canal, and the Des Plaines and Illinois rivers) opened in 1933. (The canal and its banks, designated by the U.S. Congress in 1984 the country’s first national heritage corridor, are now used for recreational…

U.S. state flag consisting of a white field (background) with the state seal in the centre showing a bald eagle, a shield, a ribbon, and other symbols.In 1913, five years prior to the centennial of statehood, Wallace Rice submitted a proposal for an Illinois state flag. It had horizontal

University of Illinois, state system of higher education in Illinois, U.S. It consists of three campuses, the main campus in the twin cities Champaign and Urbana and additional campuses in Chicago and Springfield. The universities are teaching and research institutions with land-grant standing and

University of Illinois, state system of higher education in Illinois, U.S. It consists of three campuses, the main campus in the twin cities Champaign and Urbana and additional campuses in Chicago and Springfield. The universities are teaching and research institutions with land-grant standing and

East Saint Louis, city, St. Clair county, southwestern Illinois, U.S. It lies along the Mississippi River opposite St. Louis, Missouri. About 1797 a ferry station was established on the site by Captain James Piggott, a pioneer and Illinois territorial judge, and in 1818 a village was laid out.

illite, any of a group of mica-type clay minerals widely distributed in marine shales and related sediments. Illite contains more water and less potassium than true micas, but it has a micalike sheet structure and is poorly crystallized. It may form a chemical series with both muscovite and

literacy, capacity to communicate using inscribed, printed, or electronic signs or symbols for representing language. Literacy is customarily contrasted with orality (oral tradition), which encompasses a broad set of strategies for communicating through oral and aural media. In real world

Nas: His debut recording as Nas, Illmatic (1994), drew widespread acclaim for its poetic narration of hard-edged inner-city life.

disease, any harmful deviation from the normal structural or functional state of an organism, generally associated with certain signs and symptoms and differing in nature from physical injury. A diseased organism commonly exhibits signs or symptoms indicative of its abnormal state. Thus, the normal

illness anxiety disorder, mental disorder characterized by an excessive preoccupation with illness and a tendency to fear or believe that one has a serious disease on the basis of the presence of insignificant physical signs or symptoms. Illness anxiety disorder is thought to be derived from the

Susan Sontag: …works included On Photography (1977), Illness as Metaphor (1978), Under the Sign of Saturn (1980), and AIDS and Its Metaphors (1989). She also wrote the historical novels The Volcano Lover: A Romance (1992) and In America (2000).

Scoresby Sund: Ittoqqortoormiit (also called Illoqqortoormiut; Danish: Scoresbysund) is a hunting and fishing town founded in 1924 by Ejnar Mikkelsen. The town lies north of the sound’s mouth at a place where fishing is possible throughout the year.

illuminated manuscript, handwritten book that has been decorated with gold or silver, brilliant colours, or elaborate designs or miniature pictures. Though various Islamic societies also practiced this art, Europe had one of the longest and most cultivated traditions of illuminating manuscripts. A

printmaking: Relief etching: When large areas of a metal plate are etched out (see below Etching), leaving the design in relief to be surface printed, the process is generally called relief etching. Usually the method is used for areas, but it can be also used for…

illuminati, designation in use from the 15th century, assumed by or applied to various groups of persons who claimed to be unusually enlightened. The word is the plural of the Latin illuminatus (“revealed” or “enlightened”). According to adherents, the source of the “light” was viewed as being

artillery: Projectile, powder, and fuze: …screening the activities of troops; illuminating shells, containing magnesium flares suspended by parachutes, illuminated the battlefield at night; gas shells, filled with various chemicals such as chlorine or mustard gas, were used against troops; incendiary shells were developed for setting fire to hydrogen-filled zeppelins. High explosives were improved, with TNT…

ecstasy: …purification (of the will); (3) illumination (of the mind); and (4) unification (of one’s being or will with the divine). Other methods are: dancing (as used by the Mawlawiyyah, or whirling dervishes, a Muslim Sufi sect); the use of sedatives and stimulants (as utilized in some Hellenistic mystery religions); and…

epistemology: St. Augustine: Illumination, the other element of the theory, was for Augustine and his many followers, at least through the 14th century, a technical notion, built upon a visual metaphor inherited from Plotinus (205–270) and other Neoplatonic thinkers. According to that view, the human mind is like…

Harold Frederic: …his New York State novels, The Damnation of Theron Ware (1896; English title Illumination), the story of the decline and fall of a Methodist minister, brought him his greatest fame. Three other novels, March Hares (1896), Gloria Mundi (1898), and The Market Place (1899), are about English life.

lighting, use of an artificial source of light for illumination. It is a key element of architecture and interior design. Residential lighting uses mainly either incandescent lamps or fluorescent lamps and often depends heavily on movable fixtures plugged into outlets; built-in lighting is

Alice Hoffman: …for her elder brother; and Illumination Night (1987), the story of a young couple whose marriage is challenged by a teenage girl.

Buffy Sainte-Marie: Early life and breakthrough: …Spin and Spin (1966); and Illuminations (1969), notable for its use of electronically synthesized and manipulated instrumental and vocal sounds and for its quadraphonic recording technology. In the 1970s she contributed the title song to the film Soldier Blue (1970) and released three more albums—Buffy (1974), Changing Woman (1975), and…

Illuminations, collection of 40 prose poems and two free-verse poems by Arthur Rimbaud. Although the poems are undated, they are believed to have been written in 1872–74 when he was between 17 and 19 years of age. The poet Paul Verlaine published the poems without the author’s knowledge as the work

Alumbrado, a follower of a mystical movement in Spain during the 16th and 17th centuries. Its adherents claimed that the human soul, having attained a certain degree of perfection, was permitted a vision of the divine and entered into direct communication with the Holy Spirit. From this state the

Alumbrado, a follower of a mystical movement in Spain during the 16th and 17th centuries. Its adherents claimed that the human soul, having attained a certain degree of perfection, was permitted a vision of the divine and entered into direct communication with the Holy Spirit. From this state the

illusion, a misrepresentation of a “real” sensory stimulus—that is, an interpretation that contradicts objective “reality” as defined by general agreement. For example, a child who perceives tree branches at night as if they are goblins may be said to be having an illusion. An illusion is

French literature: The development of drama: …his L’Illusion comique (performed 1636; The Comedy of Illusion), a brilliant exploitation of the interplay between reality and illusion that characterizes Baroque art. The two trends come together in Corneille’s theatre in Le Cid (performed 1637; The Cid), which, though often called the first Classical tragedy, was created as a…

Valerie Thomas: …and she soon invented the illusion transmitter, for which she received a patent in 1980. The transmission system uses a video recorder to take a picture of a floating image in front of a concave mirror. The video image is sent to a second camera, which projects the image in…

mimesis, basic theoretical principle in the creation of art. The word is Greek and means “imitation” (though in the sense of “re-presentation” rather than of “copying”). Plato and Aristotle spoke of mimesis as the re-presentation of nature. According to Plato, all artistic creation is a form of

Françoise Mallet-Joris: …Le Rempart des béguines (1951; The Illusionist, also published as Into the Labyrinth and The Loving and the Daring), the story of an affair between a girl and her father’s mistress, described with clinical detachment in a sober, classical prose. A sequel, La Chambre rouge (1953; The Red Room), and…

Paul Giamatti: Subsequent film appearances include The Illusionist (2006), a drama about a cunning magician (Edward Norton); Lady in the Water (2006), in which he starred as a superintendent who rescues a preternatural woman from his building’s swimming pool; and the comedy Fred Claus (2007).

French literature: Balzac: …journalist, in Illusions perdues [1837–43; Lost Illusions]) and the subjection of women, particularly in marriage, are used as eloquent markers of the moral impasse into which bourgeois liberalism led the French Revolution. Most presciently, he emphasized the paradox of money—its dissolving power and its dynamic force—and of the every-man-for-himself individualism…

New York Daily News, morning daily tabloid newspaper published in New York City, once the newspaper with the largest circulation in the United States. The New York Daily News was the first successful tabloid newspaper in the United States. It was founded in 1919 as the Illustrated Daily News by

Celia Fiennes: The Illustrated Journals of Celia Fiennes, 1685–c. 1712, edited by Christopher Morris, was published in 1947 (reissued in 1982).

Illustrated London News, historic magazine of news and the arts, published in London, a forerunner in the use of various graphic arts. It was founded as a weekly in 1842 by Herbert Ingram, and it became a monthly in 1971. It was London’s first illustrated periodical, with 32 woodcuts in the 16

Ray Bradbury: First short stories: The short-story collection The Illustrated Man (1951) included one of his most famous stories, “The Veldt,” in which a mother and father are concerned about the effect their house’s simulation of lions on the African veldt is having on their children.

The Tale of Genji, masterpiece of Japanese literature by Murasaki Shikibu. Written at the start of the 11th century, it is generally considered the world’s first novel. Murasaki Shikibu composed The Tale of Genji while a lady in attendance at the Japanese court, likely completing it about 1010.

history of publishing: India, Bangladesh, and Pakistan: …magazines in India include the Illustrated Weekly of India (founded 1880), a topical review for educated readers; the Statesman Weekly (founded 1924), an illustrated digest of Indian news and views; the monthly general review Current Events (founded 1955); Thought (New Delhi, 1949–78/79), a political and economic weekly; the monthly Akhand…

drawing: Applied drawings: …similarly ambivalent nature is the illustrative drawing that perhaps does not go beyond a simple pictorial rendition of a literary description but because of its specific formal execution may still satisfy the highest artistic demands. Great artists have again and again illustrated Bibles, prayer books, novels, and literature of all…

history of photography: Photojournalism: …started in May 1842, and L’Illustration, based in Paris from its first issue in March 1843—owe their origin to the same cultural forces that made possible the invention of photography. Early reproductions generally carried little of the conviction of the original photograph, however.

Jean Lemaire de Belges: His most extensive work is Les Illustrations de Gaule et singularitéz de Troye (1511, 1512, 1513; “Illustrations of Gaul and Peculiarities of Troy”), a legendary prose romance published in three books; it demonstrates an exuberant imagination and a modern appreciation of classical antiquity.

Jean Lemaire de Belges: His most extensive work is Les Illustrations de Gaule et singularitéz de Troye (1511, 1512, 1513; “Illustrations of Gaul and Peculiarities of Troy”), a legendary prose romance published in three books; it demonstrates an exuberant imagination and a modern appreciation of classical antiquity.

atom: Kinetic theory of gases: In his 1860 paper “Illustrations of the Dynamical Theory of Gases,” Maxwell used probability theory to produce his famous distribution function for the velocities of gas molecules. Employing Newtonian laws of mechanics, he also provided a mathematical basis for Avogadro’s theory. Maxwell, Clausius, and Boltzmann assumed that gas particles…

James Hutton: …in 1802 under the title Illustrations of the Huttonian Theory of the Earth. It went far toward establishing the correctness of uniformitarianism, the cornerstone on which the science of geology is erected.

Adobe Illustrator, computer-graphics application software produced by Adobe Inc. that allows users to create refined drawings, designs, and layouts. Illustrator, released in 1987, is one of many Adobe innovations that revolutionized graphic design. Adobe Systems was founded in 1982 by American

Geneviève Béjart: …and early member of Molière’s Illustre Théâtre company. Geneviève played as Mlle Hervé, adopting her mother’s name. She acted with the Béjart family company managed by her sister Madeleine before they joined forces with Molière. She attained note as a tragedienne.

warship: Light carriers: …three such ships, HMS Invincible, Illustrious, and Ark Royal. These 20,000-ton ships carried eight Sea Harriers and about a dozen antisubmarine helicopters. They also incorporated a further British contribution to aircraft carrier design: an upward-sloping “ski jump” at the end of the short (170-metre, or 558-foot) flight deck to assist…

John Paul I: …he published a creative work, Illustrissimi (“To the Illustrious Ones”), a compilation of letters addressed both to historical figures such as Jesus and Mark Twain and to fictional characters such as those in Charles Dickens’s The Pickwick Papers.

John Bale: …catalogs of English writers: the Illustrium majoris Britanniae scriptorum (1548; “Of Great Britain’s Illustrious Writers”); the revised and much-expanded Scriptorum illustrium majoris Britanniae catalogus (1557–59, reprinted 1977; “Catalogue of Great Britain’s Illustrious Writers”); and an autograph notebook, first published in 1902 by R.L. Poole and M. Bateson as Index Britanniae…

illuviation, Accumulation of dissolved or suspended soil materials in one area or layer as a result of leaching (percolation) from another. Usually clay, iron, or humus wash out and form a line with a different consistency and color. These lines are important for studying the composition and ages

Gyula Illyés was a Hungarian poet, novelist, dramatist, and dissident, a leading literary figure in Hungary during the 20th century. Illyés supported the short-lived soviet republic led by Béla Kun (1919). Sought by the police, Illyés went to Vienna, then to Berlin and to Paris, where he completed

Illyria, northwestern part of the Balkan Peninsula, inhabited from about the 10th century bce onward by the Illyrians, an Indo-European people. At the height of their power, the Illyrian frontiers extended from the Danube River southward to the Adriatic Sea and from there eastward to the Šar

Alexander the Great: Life: …and shattered a coalition of Illyrians who had invaded Macedonia. Meanwhile, a rumour of his death had precipitated a revolt of Theban democrats; other Greek states favoured Thebes, and the Athenians, urged on by Demosthenes, voted help. In 14 days Alexander marched 240 miles from Pelion (near modern Korçë,

Illyrian language, Indo-European language spoken in pre-Roman times along the eastern coast of the Adriatic Sea and in southeastern Italy. The language of the Illyrian fragments found in Italy is usually called Messapic, or Messapian. Some scholars believe the modern Albanian language (q.v.) to be

Illyrian movement, South Slav nationalist movement (c. 1835–48). Begun in the 1830s, largely through the efforts of the poet and journalist Ljudevit Gaj, the movement involved the revival of Serbo-Croatian literary activity and sought the unification of all the South Slavs in the Habsburg

Illyrian Provinces, stretch of territory along the Dalmatian coast that constituted a part of Napoleon’s French Empire from 1809 to 1814. When the French victory of 1809 compelled Austria to cede a portion of its South Slav lands to France, Napoleon combined Carniola, western Carinthia, Görz

Balkans: In the Roman Empire: …rivers, became the province of Illyricum. What is now eastern Serbia was incorporated into Moesia, which reached farther eastward between the Balkan Mountains and the Danube all the way to the Black Sea. The southeastern part of the peninsula was ruled as Thrace, and the southern part was brought into…

Peter Carey: …novels Bliss (1981; filmed 1985), Illywhacker (1985), and Oscar and Lucinda (1988; filmed 1997) are more realistic, though Carey used black humour throughout all three. The later novels are based on the history of Australia, especially its founding and early days.

kashf: …kashf as the alternative to ʿilm (“knowledge”), which applies systematic theology, logic, and speculative philosophy to the study of the nature of God. When the Muslim jurist and theologian al-Ghazālī (d. 1111) felt that philosophy and speculative theology had failed him, he turned wholeheartedly to Sufism, abandoning his teaching profession…

history of film: United States: At the special-effects firm Industrial Light and Magic, models of the dinosaurs were scanned into computers and animated realistically to produce the first computer-generated images of lifelike action, rather than fantasy scenes. In Independence Day, a film combining the science-fiction and disaster genres in which giant alien spaceships attack…

ʿilm al-ḥadīth, form of investigation established by Muslim traditionists in the 3rd century ah (9th century ce) to determine the validity of accounts (hadiths) of Muhammad’s statements, actions, and approbations as reported by various authorities. In the first two centuries of Islam, during the

tafsīr, the science of explanation of the Qurʾān, the sacred scripture of Islam, or of Qurʾānic commentary. So long as Muhammad, the Prophet of Islam, was alive, no other authority for interpretations of the Qurʾānic revelations was recognized by Muslims. Upon his death, however, commentaries were

Ilmarinen, one of the chief deities in Finno-Ugric religion, functioning both as creator deity and as weather god. He forged the sampo, a world pillar that supports the sky, and hammered the firmament itself. He is often mentioned in mythic songs as working in a smithy with no door or windows and

Lake Ilmen, lake in Novgorod oblast (province), northwestern Russia. Lake Ilmen occupies the centre of the Ilmen Plain, an undulating glacial lowland much of which is drained by rivers flowing into the lake; the lake in turn provides the headwaters of the Volkhov River. The lake occupies a shallow

ilmenite, iron-black, heavy, metallic oxide mineral, composed of iron and titanium oxide (FeTiO3), that is used as the major source of titanium. It forms solid-solution series with geikielite and pyrophanite in which magnesium and manganese, respectively, replace iron in the crystal structure.