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air, law of the

(Encyclopedia)air, law of the, in the broadest sense, all law connected with the use of the air, including radio and satellite transmissions; more commonly, it refers to laws concerning civil aviation. The developm...

Pan-American Union

(Encyclopedia)Pan-American Union, former name for the General Secretariat of the Organization of American States (OAS). It was founded (1889–90) at the first of the modern Inter-American Conferences (see Pan-Amer...

Compromise of 1850

(Encyclopedia)Compromise of 1850. The annexation of Texas to the United States and the gain of new territory by the Treaty of Guadalupe Hidalgo at the close of the Mexican War (1848) aggravated the hostility betwee...

Newlands project

(Encyclopedia)Newlands project, on the Carson and Truckee rivers, W Nev.; one of the first projects built by the U.S. Bureau of Reclamation (1903–8). Lahontan Dam was completed in 1915 to produce electricity for ...

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...

Rickover, Hyman George

(Encyclopedia)Rickover, Hyman George, 1900–1986, American admiral, b. Russia. In World War II he served as head of the electrical section of the navy's Bureau of Ships. After the war he was assigned (1946) to the...

Steward, Julian Haynes

(Encyclopedia)Steward, Julian Haynes, 1902–72, American anthropologist, b. Washington, D.C., grad. Cornell, 1925, Ph.D. Univ. of California, 1929. He taught at the Univ. of Michigan (1928–30), Columbia (1946–...

guidance and counseling

(Encyclopedia)guidance and counseling, concept that institutions, especially schools, should promote the efficient and happy lives of individuals by helping them adjust to social realities. The disruption of commun...

Ballinger, Richard Achilles

(Encyclopedia)Ballinger, Richard Achilles bălˈĭnjər [key], 1858–1922, U.S. Secretary of the Interior (1909–11), b. Boonesboro (now in Boone), Iowa. He was mayor of Seattle (1904–6) and commissioner of the...

barbiturate

(Encyclopedia)barbiturate bärbĭchˈərātˌ [key], any one of a group of drugs that act as depressants on the central nervous system. High doses depress both nerve and muscle activity and inhibit oxygen consumpti...