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siderite

(Encyclopedia)siderite kălˈĭbīt [key], a mineral, varying in color from brown, green, or gray to black and occurring in nature in massive and crystalline form. A carbonate of iron, FeCO3, it serves as an iron o...

Bodoni, Giambattista

(Encyclopedia)Bodoni, Giambattista jämbät-tēˈstä bōdōˈnē [key], 1740–1813, Italian printer b. Piedmont. He was the son of a printer and worked for a time at the press of the Vatican. Under the patronage ...

Brisbane, Albert

(Encyclopedia)Brisbane, Albert brĭzˈbān [key], 1809–90, American social theorist, b. Batavia, N.Y. After studying with Charles Fourier in Paris, he returned to the United States as an enthusiastic advocate of ...

Albright, Ivan Le Lorraine

(Encyclopedia)Albright, Ivan Le Lorraine ôlˈbrīt [key], 1897–1983, American painter, b. North Harvey, Ill. Allied with the Magic Realist group, Albright developed a style combining American scene painting with...

Ferris, Woodbridge Nathan

(Encyclopedia)Ferris, Woodbridge Nathan, 1853–1928, American educator and public official, b. Tioga co., N.Y. After study (1873–74) at the Univ. of Michigan, he taught in country schools, and became a successfu...

ammonium sulfate

(Encyclopedia)ammonium sulfate, chemical compound, (NH4)2SO4, a colorless-to-gray, rhombohedral crystalline substance that occurs in nature as the mineral mascagnite. It is soluble in water and insoluble in alcohol...

fulminate

(Encyclopedia)fulminate fŭlˈmĭnāt [key], any salt of fulminic acid, HONC, a highly unstable compound known only in solution. The term is most commonly applied to the explosive mercury (II) fulminate, also calle...

patina

(Encyclopedia)patina pătˈənə [key], coating of carbonate of copper on articles of copper or bronze, formed after long exposure to a moist atmosphere or burial in the earth. Although commonly green, patina varie...

cerussite

(Encyclopedia)cerussite sērˈəsīt [key], colorless to white or gray mineral, sometimes yellowish or greenish, transparent to opaque, very brittle, crystallizing in the orthorhombic system and occurring also in g...

White, Stewart Edward

(Encyclopedia)White, Stewart Edward, 1873–1946, American author, b. Grand Rapids, Mich., grad. Univ. of Michigan, 1895. The stories collected in The Claim Jumpers (1901) and The Blazed Trail (1902) reflect his ow...