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Frost, Arthur Burdett

(Encyclopedia)Frost, Arthur Burdett, 1851–1928, American illustrator and cartoonist, b. Philadelphia; pupil of Thomas Eakins at the Pennsylvania Academy of the Fine Arts. He worked chiefly in New York City and be...

hygrometer

(Encyclopedia)hygrometer hīgrŏmˈətər [key], instrument used to measure the moisture content of a gas, as in determining the relative humidity of air. The temperature at which dew or frost forms is a measure of...

growing season

(Encyclopedia)growing season, period during which plant growth takes place. In temperate climates the growing season is limited by seasonal changes in temperature and is defined as the period between the last killi...

dew

(Encyclopedia)dew, thin film of water that has condensed on the surface of objects near the ground. Dew forms when radiational cooling of these objects during the nighttime hours also cools the shallow layer of ove...

cold frame

(Encyclopedia)cold frame, in horticulture, sun-heated board frame covered with a removable top of glass or other transparent material and sunk into the ground. The top may be solid or slatted or screened for shade....

Kennan, George Frost

(Encyclopedia)Kennan, George Frost, 1904–2005, U.S. diplomat and historian, b. Milwaukee, Wis., grad. Princeton, 1925. A brilliant strategist and among the most influential and intellectual Americans in the 20th-...

cryolite

(Encyclopedia)cryolite or kryolite both: krīˈəlītˌ [key] [Gr.,=frost stone], mineral usually pure white or colorless but sometimes tinted in shades of pink, brown, or even black and having a luster like that o...

Arches National Park

(Encyclopedia)Arches National Park, 76,519 acres (30,979 hectares), E Utah; est. as a national monument 1929, designated a national park 1971. Located in red-rock country and overlooking the gorge of the Colorado R...

Coffin, William Anderson

(Encyclopedia)Coffin, William Anderson, 1855–1925, American landscape and figure painter and art critic, studied at the Yale School of Fine Arts and under Léon Bonnat in Paris. His landscapes were awarded numero...

Martínez Sierra, Gregorio

(Encyclopedia)Martínez Sierra, Gregorio grāgōˈrēō märtēˈnĕth syāˈrä [key], 1881–1947, Spanish dramatist, novelist, and poet. His masterpiece is Canción de cuna (1911, tr. The Cradle Song, 1917), but...
 

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