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Jurassic period
(Encyclopedia)Jurassic period jərăsˈĭk [key] [from the Jura Mts.], second period of the Mesozoic era of geologic time, lasting from 213 to 144 million years ago. At the start of the Jurassic most of the contine...Triassic period
(Encyclopedia)Triassic period trīăsˈĭk [key], first period of the Mesozoic era of geologic time (see Geologic Timescale, tablegeologic timescale, table) from 205 to 250 million years ago. Throughout the Triassi...North America
(Encyclopedia) CE5 North America, third largest continent (2015 est. pop. 571,949,000), c.9,400,000 sq mi (24,346,000 sq km), the northern of the two continents of the Western Hemisphere. North America includes a...British Columbia
(Encyclopedia) CE5 British Columbia, province, 366,255 sq mi (948,600 sq km), including 6,976 sq mi (18,068 sq km) of water surface, W Canada. The Conservatives ...National Forest System
(Encyclopedia)National Forest System, federally owned reserves, c.191 million acres (77.4 million hectares), administered by the Forest Service of the U.S. Dept. of Agriculture. The system is made up of 155 nationa...Indian Affairs, Bureau of
(Encyclopedia)Indian Affairs, Bureau of, created (1824) in the U.S. War Dept. and transferred (1849) to the U.S. Dept. of the Interior. The War Dept. managed Native American affairs after 1789, but a separate burea...cypress, in botany
(Encyclopedia)cypress, common name for members of the Cupressaceae, a widely distributed family of coniferous shrubs and trees, several yielding valuable timber. The major genera are Juniperus (juniper), Thuja (arb...peat
(Encyclopedia)peat, soil material consisting of partially decomposed organic matter, found mainly in swamps and bogs in various parts of the northern temperate zone but also in some semitropical and tropical region...county
(Encyclopedia)county [Fr., comté,=domain of a count], division of local government in the United States, Great Britain, and many Commonwealth countries. The county developed in England from the shire, a unit of lo...Seward, William Henry
(Encyclopedia)Seward, William Henry, 1801–72, American statesman, b. Florida, Orange co., N.Y. In 1861, Seward became Secretary of State under Abraham Lincoln, and many expected him to be the real power in th...Browse by Subject
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