Davos
a small valley lying among the Alps of the eastern Grisons, 16 miles S. E. of Coire. The village of Davos-Platz stands 5,105 feet above sealevel; but the valley, inclosed by lofty hills, has become famous as a healthresort in winter, especially for such as suffer from chest disease. The inhabitants of the valley, which till 1848 was one of the 26 independent republics of the Grisons, are mostly German Protestants.
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Davout
LOUIS NICOLAS (dä-vö'), marshal of France; born in Ana noux, May 10, 1770. He studied with Napoleon at Brienne, and entered the army in 1785. He took sides with the revolutionists, fought several battles under Dumouriez, and was made a Brigadier-General in 1793. He accompanied Napoleon in his Italian campaigns and in his expedition to Egypt. În 1804 he was made a marshal of the empire. The victories of Ulm and Austerlitz were mainly due to him, as also those of Eckmühl and Wagram. For these meritorious services he was created Duke of Auerstädt and Prince of Eckmühl. He joined the Russian expedition, and was wounded at Borodino. After the retreat from Moscow he defended Hamburg against all the forces of the allies, and surrendered.only after the peace of 1814. When Napoleon returned from Elba, Davout was appointed his minister of war. After the battle of Waterloo he lived in retirement until 1819, when he took his seat in the Chamber of Peers. He died in Paris, June 1, 1823.
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Davy
SIR HUMPHRY, BART., an English chemist; born in Penzance, Dec. 17, 1778. After having received the rudiments of a classical education he was placed with a surgeon and apothecary, and early developed a taste for scientific experiments. He was appointed Professor of Chemistry in the Royal Institution at the age of 24. In 1803 he was chosen a member of the Royal Society. His discoveries with the galvanic battery, his decomposition of the earths and alkalies and ascertaining their metallic bases, his demonstration of the simple nature of the oxy-muriatic acid (to which he gave the name of chlorine), etc., obtained him an extensive reputation; and in 1810 he received the prize of the French Institute. In 1814 he was elected a corresponding member of that body. body. Having been elected Professor of Chemistry to the Board of Agriculture he delivered lectures on agricultural chemistry during 10 successive years. The numerous accidents arising from fire-damp in mines led him to invent his safety-lamp. He was knighted in 1812 and created a baronet in 1818. In 1820 he succeeded Sir J. Banks as president of the Royal Society. His most important works are: "Philosophical Researches," "Elements of Agricultural Chemistry," "Electro-Chemical Researches," "Elements of Chemical Philosophy." He also contributed some valuable papers to the "Philosophical Transactions," and was author of "Salmonia, or Days of Fly-fishing," and "Consolations in Travel, Travel, or the Last Days of a Philosopher." He died in Geneva, May 29, 1829.
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Davy Jones
a name in common use among sailors, especially in the expression "Go to Davy Jones' locker ," which signifies to go to the bottom of the sea. The origin of the name is uncertain, some claiming that it is from Jonah. It would seem that Davy Jones is the ruler of the evil spirits of the sea.
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Davy Lamp
the safety-lamp of Sir Humphry Davy, in which a wire-gauze envelope covers the flame-chamber and prevents the passage of flame outward to the explosive atmosphere of the mine, while it allows circulation of air.
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Dawes' Holes
minute circular spots on the nucleus of a sun-spot, darker than the rest of the nucleus, and of tubular supposed to be the months of tubu orifices penetrating to unknown depths. They were first observed by the astronomer whose name they bear.
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Day Lily
the popular name for a genus of lilies (Hemerocallis), a native of temperate Asia and eastern Europe, two species of which (H. flava and H. fulva) are grown in gardens. They have long radical leaves, and a branched few-flowered scape, with large, handsome blossoms, the segments of which are united into a tube.
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Daytona
a city of Florida, in Volusia co. It is on the Atlantic Ocean, the Halifax river, the Jacksonville-Miami canal, and the Florida East Coast railroad. It is also on the line of the Florida Coastal Island Navigation Company. In recent years it has become a popular summer and winter resort. It has excellent hotels, a library, and an Elks' Home. The principal industries are the growing of oranges and straworanges berries, and fishing. Pop. (1910) 3,082; (1920) 5,445.
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De Amicis
EDMONDO. AMICIS. DEAN (literally, a head or chief of 10 men), in the Church of England, an ecclesiastical dignitary in cathedral and collegiate churches, and the head of a chapter, originally said to consist of 10 canons or prebendaries; whence the origin of the term. The presiding head of the faculty in some of the English and Scottish universities. In the Universities of Oxford and Cambridge, an officer deputed to compel the attendance of students at prayers in the chapels of the colleges, and generally, to supervise their conduct at religious service. In the United States the several schools of medicine, law, etc., connected with the universities frequently appoint a dean, whose functions vary with the requirements of his particular institution. The dean of a faculty is its registrar or secretary.
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De Candolle, Augustin Pyrame
deh kon-dol', Augustin Pyrame (1778-1841), a noted French botanist. He was born at Geneva and educated first for the law, then for medicine. It is noticeable that the botanists of the eighteenth century approached their favorite science by way of medicine. De Candolle was wont to excuse himself for leaving medicine by saying, "If I make a mistake in naming a plant, I can set it right." Influential friends wondered that a man of his talents should spend his time running about France gathering plants. After holding various positions De Candolle settled down in a professorship at Geneva, where he accumulated a large herbarium and wrote several botanical treatises. He named many plants new to science. De Candolle was a close reader of Linnaeus' works, but adopted the classification of Ray and Jussieu.
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