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Redwood National Park

(Encyclopedia) Redwood National Park, 112,430 acres (45,518 hectares), along the Pacific coast, NW Calif.; est. 1968. Backed by coastal bluffs, 40 mi (64 km) of beach, lagoon, and rocky coast are…

talc

(Encyclopedia) talc, mineral ranging in color from white through various shades of gray and green to the red and brown of impure specimens, translucent to opaque, and having a greasy, soapy feel. It…

Alps

(Encyclopedia) Alps, great mountain system of S central Europe, c.500 mi (800 km) long and c.100 mi (160 km) wide, curving in a great arc from the Riviera coast on the Mediterranean Sea, along the…

Rocky Mountains

(Encyclopedia) Rocky Mountains, major mountain system of W North America and easternmost belt of the North American cordillera, extending more than 3,000 mi (4,800 km) from central N.Mex. to NW…

rockfish

(Encyclopedia) rockfish, member of the family Sebastidae (rockfishes) according some authorities, but also classified as a member of the family Scorpaenidae (scorpionfishes, lionfishes, and…

Ryan, Kay

(Encyclopedia) Ryan, Kay, 1945–, American poet, b. San Jose, Calif., grad. Univ. of California at Los Angeles (B.A., 1967; M.A., 1968). She taught remedial English in a Marin co. community college…

porphyry, igneous rock

(Encyclopedia) porphyryporphyrypôrˈfərē [key], igneous rock composed of large, conspicuous crystals (phenocrysts) and a groundmass in which the phenocrysts are embedded. Some authorities consider the…

pumice

(Encyclopedia) pumicepumicepŭmˈĭs [key], volcanic glass formed by the solidification of lava that is permeated with gas bubbles. Usually found at the surface of a lava flow, it is colorless or light…

backswimmer

(Encyclopedia) backswimmer, common name for water bugs of the cosmopolitan family Notonectidae, so named because they swim upside down, usually near the surface of the water. They have oval bodies…

isopod

(Encyclopedia) isopodisopodīˈsəpŏdˌ [key], common name for crustaceans belonging to the order Isopoda and in the same subclass as lobsters and crayfish. Isopods are characterized by their flattened…