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Tonegawa, Susumu

(Encyclopedia) Tonegawa, Susumu, 1939–, Japanese molecular biologist, Ph.D. Univ. of California at San Diego, 1969. A member of the Basel Institute for Immunology in Switzerland (1971–81), he became…

rondo

(Encyclopedia) rondorondorŏnˈdō, rŏndōˈ [key], instrumental musical form in which the opening section is repeated after each succeeding section containing contrasting thematic material. The complex…

Powell, John

(Encyclopedia) Powell, John, 1882–1963, American pianist and composer, b. Richmond, Va., grad. Univ. of Virginian, 1901. In Vienna he studied piano and composition and in 1908 made his debut as a…

Lawes, Sir John Bennet

(Encyclopedia) Lawes, Sir John Bennet, 1814–1900, English agriculturist. He founded the famous experimental farm at Rothamsted, where, with the English chemist Sir J. H. Gilbert, he experimented with…

Gnathustomulida

(Encyclopedia) GnathustomulidaGnathustomulidanāˌthyəstəmy&oomacr;ˈlĭdə [key], phylum of microscopic worms described in 1956 that have elongated bodies, cilia, and are hermaphroditic. The 80 known…

Howe, Henry

(Encyclopedia) Howe, Henry, 1816–93, American historian, b. New Haven, Conn. Howe is known for his Historical Collections of the State of New York (1841), Historical Collections of the State of New…

Hoover Institution on War, Revolution, and Peace

(Encyclopedia) Hoover Institution on War, Revolution, and Peace, at Stanford, Calif. It was established in 1919 as the Hoover War Library by Herbert Hoover to extend his collection of documents of…

atomism

(Encyclopedia) atomism, philosophic concept of the nature of the universe, holding that the universe is composed of invisible, indestructible material particles. The theory was first advanced in the…

photostat

(Encyclopedia) photostatphotostatfōˈtəstătˌ [key], reproduction of any printed or simple black-and-white material, such as drawings or manuscripts, made by the Photostat, a photographic camera. While…

Hansen, Marcus Lee

(Encyclopedia) Hansen, Marcus Lee, 1892–1938, American historian, b. Neenah, Wis. He spent almost four years in Europe gathering material for his studies on immigration. For The Atlantic Migration,…