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beryl

(Encyclopedia)beryl bĕrˈĭl [key], mineral, a silicate of beryllium and aluminum, Be3Al2Si6O18, extremely hard, occurring in hexagonal crystals that may be of enormous size and are usually white, yellow, green, b...

Yorke, Henry Vincent

(Encyclopedia)Yorke, Henry Vincent: see Green, Henry. ...

parakeet

(Encyclopedia)parakeet or parrakeet, common name for a widespread group of small parrots, native to the Indo-Malayan region and popular as cage birds. Parakeets have long, pointed tails, unlike the chunky lovebirds...

Wisconsin, state, United States

(Encyclopedia)CE5 Wisconsin wĭskŏnˈsən, –sĭn [key], upper midwestern state of the United States. It is bounded by Lake Superior and the Upper Peninsula of Michigan, from which it is divided in part by the...

Cushing, Frank Hamilton

(Encyclopedia)Cushing, Frank Hamilton, 1857–1900, American ethnologist, b. North East, Pa. He published his first scientific paper at the age of 17, and at 18 joined the American ethnology bureau at the Smithsoni...

liverwort

(Encyclopedia)liverwort, any plant of the class Marchantiopsida. Mosses and liverworts together comprise the division Bryophyta, primitive green land plants (see moss; plant); some of the earliest land plants resem...

Brown, Margaret Wise

(Encyclopedia)Brown, Margaret Wise, 1910–52, American children's book author, b. Brooklyn, N.Y., B.A Hollins College, 1932. Continuing her education at the Bureau of Educational Experiments (now the Bank Street C...

trogon

(Encyclopedia)trogon trōˈgŏn [key], family of tropical jungle birds related to the roadrunners and including the quetzal. Trogons are sedentary arboreal birds, 10 to 14 in. (25.4–35.6 cm) long, with short roun...

sepal

(Encyclopedia)sepal, a modified leaf, part of the outermost of the four groups of flower parts. The sepals of a flower are collectively called the calyx and act as a protective covering of the inner flower parts in...

Thompson, Daniel Pierce

(Encyclopedia)Thompson, Daniel Pierce, 1795–1868, American novelist, b. Charlestown, Mass. He wrote adventure novels, many of which deal with life in Vermont. His notable work is The Green Mountain Boys (1839). ...