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Cronquist, Arthur C.

(Encyclopedia)Cronquist, Arthur C. krŏngˈkwĭst, krŏnˈ– [key], 1919–92, American systematic botanist. He was the author of two introductory botanical textbooks, with Henry Allan Gleason: The Natural Geograp...

isotope

(Encyclopedia)CE5 Isotopes of hydrogen isotope īˈsətōp [key], in chemistry and physics, one of two or more atoms having the same atomic number but differing in atomic weight and mass number. The concept of ...

slipware

(Encyclopedia)slipware, pottery decorated with various colors of slip, a thin mixture of clay and water. Slip may form a design on a contrasting background, or lines may be scratched through a coating of slip to sh...

Thouless, David James

(Encyclopedia)Thouless, David James, 1934–2019, British physicist, b. Bearsden, Scotland, Ph.D. Cornell, 1958. He was a professor at the Univ. of Birmingham, England (1965–78), Yale (1979–80), and the Univ. o...

Bridgwater

(Encyclopedia)Bridgwater, town, Somerset, SW England, on the Parrett River estuary. It is a port for seaborne traffic and a market town. Bridgwater is the only place ...

Mayfield

(Encyclopedia)Mayfield, city (2020 pop. 10,017), seat of Graves co., SW Ky., in an area of farms and clay deposits; founded 1823. It is an agricultural trade center w...

marl, type of soil

(Encyclopedia)marl or bog lime, soil, essentially clay mixed with carbonate of lime, highly valued as a dressing or fertilizer. It crumbles rapidly and easily. Marl in which the lime is in the form of invertebrate ...

thallophyte

(Encyclopedia)thallophyte, common name for members of the Thallophyta (or Thallobionta), a taxonomic group in some archaic classification systems that comprised algae, fungi, and lichens. The thallophytes were cons...

Louisiana State University and Agricultural and Mechanical College

(Encyclopedia)Louisiana State University and Agricultural and Mechanical College, mainly at Baton Rouge; land-grant and state supported; coeducational; chartered 1853, opened as a state seminary 1860 near Alexandri...

American Academy and Institute of Arts and Letters

(Encyclopedia)American Academy and Institute of Arts and Letters, honorary academy of notable American artists, writers, and composers. The National Institute of Arts and Letters, founded in 1898, served as the par...