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leaf insect

(Encyclopedia)leaf insect, common name given to herbivorous insects of leaflike appearance forming a single family in the order Phasmida. Leaf insects are green and have extremely flattened, irregularly shaped bodi...

Shimomura, Osamu

(Encyclopedia)Shimomura, Osamu, 1928–2018, Japanese organic chemist and marine biologist, Ph.D. Nagoya Univ., 1960. Shimomura was a researcher at Princeton (1960–82) and a professor (1982–2001) simultaneously...

Potter's Bar

(Encyclopedia)Potter's Bar, town (1991 pop. 22,755), Hertfordshire, central England, in the Midlands. Potter's Bar is a residential district, most of which is within the Green Belt Zone barred to industrial develop...

Matilda, queen of England

(Encyclopedia)Matilda or Maud, 1102–67, queen of England, daughter of Henry I of England. Henry arranged a marriage for her with Holy Roman Emperor Henry V, and she was sent to Germany, betrothed, and five years ...

Katharine of Aragón

(Encyclopedia)Katharine of Aragón, 1485–1536, first queen consort of Henry VIII of England; daughter of Ferdinand II of Aragón and Isabella of Castile. In 1501 she was married to Arthur, eldest son of Henry VII...

jasper, type of quartz

(Encyclopedia)jasper, opaque, impure cryptocrystalline quartz, usually red, but also yellow, green, and grayish blue. It is used as a gem. Ribbon jasper has the colors in stripes. ...

Notre Dame Mountains

(Encyclopedia)Notre Dame Mountains, section of the Appalachian system, extending c.500 mi (800 km) from the Green Mts. of Vermont into the Gaspé Peninsula, Canada. Worn low by erosion, the ancient mountains have a...

bloodstone

(Encyclopedia)bloodstone or heliotrope, green chalcedony spotted with red, used as a gem stone. It is found in India, the United States, Brazil, and Australia. ...

De la Beche, Sir Henry Thomas

(Encyclopedia)De la Beche, Sir Henry Thomas də lä bāsh, dĕləbĕshˈ [key], 1796–1855, English geologist. As a result of his private undertaking to prepare a geological map of England, the British government ...

Huntingdon, Henry Hastings, 3d earl of

(Encyclopedia)Huntingdon, Henry Hastings, 3d earl of, 1535–95, English nobleman. Through his mother, Catherine Pole, a great-granddaughter of the duke of Clarence (brother of Edward IV and Richard III), Hastings ...