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Tobey, Mark

(Encyclopedia)Tobey, Mark, 1890–1976, American painter, b. Centerville, Wis. An avid traveler, Tobey visited China and Japan in 1934. He then developed his celebrated “white writing,” in which he attempted to...

topography

(Encyclopedia)topography təpŏgˈrəfē [key], description or representation of the features and configuration of land surfaces. Topographic maps use symbols and coloring, with particular attention given to the sh...

Belgian horse

(Encyclopedia)Belgian horse, one of the largest breeds of draft horses of pure European descent. It has a long history, antedating the Christian era, but became especially popular during the Middle Ages. In the 15t...

unicorn

(Encyclopedia)unicorn yo͞oˈnĭkôrn [key], fabulous equine beast with a long horn jutting from the middle of its forehead. Once thought to be native to India, the unicorn was reportedly seen throughout the world....

Rayleigh, John William Strutt, 3d Baron

(Encyclopedia)Rayleigh, John William Strutt, 3d Baron rāˈlē [key], 1842–1919, English physicist. He was professor at Cambridge (1879–84) and at the Royal Institution (1887–1905), and chancellor of Cambridg...

azurite

(Encyclopedia)azurite ăzhˈərīt [key], blue mineral, the basic carbonate of copper, occurring in monoclinic crystals or masses that range from transparent to translucent and opaque. It is usually associated with...

sperm oil

(Encyclopedia)sperm oil, liquid wax obtained from the sperm whale, or cachalot, and related marine mammals. It flows readily, is clear, and varies in color from pale yellow to brownish yellow. Chemically it is not ...

stibnite

(Encyclopedia)stibnite stĭbˈnīt [key], antimony sulfide, Sb2S3, a mineral, silvery gray in color, with a metallic luster. It crystallizes in the orthorhombic system. Found in many parts of the world, it is the m...

whippet

(Encyclopedia)whippet, breed of small, slender hound developed in England in the mid-18th cent. It stands between 18 and 22 in. (45.7–55.8 cm) high at the shoulder and weighs about 20 lb (9 kg). Its close-lying, ...

dye

(Encyclopedia)dye, any substance, natural or synthetic, used to color various materials, especially textiles, leather, and food. Natural dyes are so called because they are obtained from plants (e.g., alizarin, cat...