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Peterson, Roger Tory

(Encyclopedia)Peterson, Roger Tory, 1908–96, American ornithologist, writer, and illustrator, b. Jamestown, N.Y. He became famous with his best-selling pocket-sized Field Guide to the Birds (1934) and is known fo...

Wilson, Kenneth Geddes

(Encyclopedia)Wilson, Kenneth Geddes, 1936–2013, American physicist, b. Waltham, Mass., Ph.D. California Institute of Technology, 1961. A professor at Cornell (1963–88) and Ohio State Univ. (1988–2008), Wilso...

Wrangel, Friedrich Heinrich Ernst, Graf von

(Encyclopedia)Wrangel, Friedrich Heinrich Ernst, Graf von frēˈdrĭkh hīnˈrĭkh ĕrnst gräf fən vrängˈəl [key], 1784–1877, Prussian field marshal. He fought in the Napoleonic Wars. In 1848 he commanded th...

Warming, Johannes Eugenius Bülow

(Encyclopedia)Warming, Johannes Eugenius Bülow yōhänˈəs ĕo͝ogāˈnēo͝os büˈlou värmˈĭng [key], 1841–1924, Danish botanist, a founder of the science of plant ecology. He was a professor at the Univ. ...

Werner, Alfred

(Encyclopedia)Werner, Alfred, 1866–1919, French-born Swiss chemist, Ph.D. Univ. of Zürich, 1890. Werner was a professor at the Univ. of Zürich from 1893 until his death in 1919. He was awarded the Nobel Prize i...

Cameroon, Mount

(Encyclopedia)Cameroon, Mount kămˈəro͞on [key], active volcano, 13,354 ft (4,070 m) high, in the Cameroon Highlands, W Cameroon; highest point in W Africa. The mountain and surrounding area are in Mt. Cameroon ...

blink microscope

(Encyclopedia)blink microscope, in astronomy, device for determining a change in position or magnitude (brightness) of a star relative to other stars in the background. Two photographs of the same field or area of ...

Bock, Fedor von

(Encyclopedia)Bock, Fedor von fāˈdôr fən bôk [key], 1880–1945, German field marshal. During World War II he led German armies in Poland, the Low Countries, France, and Russia. In 1941 he failed to take Mosco...

Lenbach, Franz von

(Encyclopedia)Lenbach, Franz von fränts fən lānˈbäkh [key], 1836–1904, German portrait painter. He studied in Munich and Rome and from 1863 to 1868 worked as a copyist of old masters in Italy and Spain. His ...

Mackay, Lake

(Encyclopedia)Mackay, Lake məkīˈ [key], large, usually dry, saline lake, 1,829 sq mi (4,737 sq km), 65 mi (105 km) long, 40 mi (64 km) wide, W central Australia, on the border of Western Australia and the Northe...