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Adams, Brooks

(Encyclopedia)Adams, Brooks, 1848–1927, American historian, b. Quincy, Mass.; son of Charles Francis Adams (1807–86). His theory that civilization rose and fell according to the growth and decline of commerce w...

Shreveport

(Encyclopedia)Shreveport shrēvˈpôrt [key], city (1990 pop. 198,525), seat of Caddo parish, NW La., on the Red River near the Tex. and Ark. lines; inc. 1839. The third largest city in the state, it is a regional ...

cambium

(Encyclopedia)cambium kămˈbēəm [key], thin layer of generative tissue lying between the bark and the wood of a stem, most active in woody plants. The cambium produces new layers of phloem on the outside and of ...

Ramos, Fidel Valdez

(Encyclopedia)Ramos, Fidel Valdez fēdĕlˈ väldĕsˈ räˈmōs [key], 1928–, Philippine general and politician, president of the Philippines (1992–98), b. Lingayen. A career army officer, he became deputy chi...

rickets

(Encyclopedia)rickets or rachitis rəkīˈtĭs [key], bone disease caused by a deficiency of vitamin D or calcium. Essential in regulating calcium and phosphorus absorption by the body, vitamin D can be formed in t...

Rochester, cities, United States

(Encyclopedia)Rochester rŏchˈĕstər, –ĭstər [key]. 1 City (1990 pop. 70,745), seat of Olmsted co., SE Minn.; inc. 1858. It is a farm trade center, and its industries include printing and publishing, food pro...

Tampa

(Encyclopedia)Tampa tămˈpə [key], city (1990 pop. 280,015), seat of Hillsborough co., W Fla., a port of entry with an impressive harbor on Tampa Bay; inc. 1855. The third largest city in the state, Tampa has lon...

tropics

(Encyclopedia)tropics, also called tropical zone or torrid zone, all the land and water of the earth situated between the Tropic of Cancer at lat. 231⁄2°N and the Tropic of Capricorn at lat. 231⁄2°S. Every po...

diseases of plants

(Encyclopedia)diseases of plants. Most plant diseases are caused by fungi, bacteria, and viruses. Although the term disease is usually used only for the destruction of live plants, the action of dry rot and the rot...

Düsseldorf

(Encyclopedia)Düsseldorf düsˈəldôrf [key], city, capital of North Rhine–Westphalia, W Germany, at the ...