Columbia Encyclopedia

(Encyclopedia)  CE5 classification, in biology, the systematic categorization of organisms into a coherent scheme. The original purpose of biological classification, or systematics, was to organize the vast number...

(Encyclopedia) Examples of Systematic Classification ...

(Encyclopedia) Marbut, Curtis Fletcher märˈbət [key], 1863–1935, American geologist, b. Verona, Mo., grad. Univ. of Missouri (B.S., 1889) and Harvard (M.A., 1844). As professor of geology at the Univ. of Missou...

(Encyclopedia) Cutter, Charles Ammi, 1837–1903, American librarian, b. Boston. Cutter cataloged the library of the Harvard Divinity School and in 1860 was appointed as the assistant to the librarian of Harvard. As...

(Encyclopedia) Kraepelin, Emil krĕpəlēnˈ [key], 1856–1926, German psychiatrist, educated at Würzburg (M.D., 1878). He also studied under Wilhelm Wundt in Leipzig, and was appointed professor of psychiatry at ...

(Encyclopedia) extroversion and introversion, terms introduced into psychology by Carl Jung to identify opposite psychological types. Jung saw the activity of the extrovert directed toward the external world and tha...

(Encyclopedia) Food and Drug Administration (FDA), agency of the Public Health Service division of the U.S. Department of Health and Human Services. It is charged with protecting public health by ensuring that foods...

(Encyclopedia) Engler, Adolf äˈdôlf ĕngˈlər [key], 1844–1930, German botanist. He emphasized the importance of geological history in the study of plant geography, and worked out an influential system of plan...

(Encyclopedia) Jussieu zhüsyöˈ [key], French family of distinguished botanists. Antoine de Jussieu, 1686–1758, was director of the Jardin des Plantes, Paris. He edited Jacques Barrelier's posthumously published...

(Encyclopedia) Linnaeus, Carolus kärōˈləs lĭnāˈəs [key], 1707–78, Swedish botanist and taxonomist, considered the founder of the binomial system of nomenclature and the originator of modern scientific clas...