Rawlins, John Aaron, 1831–69, Union general in the American Civil War, b. Galena, Ill. Admitted to the bar in 1854, he practiced law in Galena. In 1861 he joined the Union army at the request ...

Anglesite, pale green, blue, yellow-to-white, or colorless mineral, a sulfate of lead, PbSO4, that is formed by oxidation of galena, crystallizing in the orthorhombic system and occurring also...

Cerussite, colorless to white or gray mineral, sometimes yellowish or greenish, transparent to opaque, very brittle, crystallizing in the orthorhombic system and occurring also in granular and...

Washburne, Elihu Benjamin, 1816–87, American politician and diplomat, b. Livermore, Maine. Admitted to the bar in Massachusetts, he opened (1840) his law practice in Galena, Ill. As a U.S. Rep...

Mazzuchelli, Samuel Charles, 1806–64, Italian missionary in America. He was a Dominican. He was ordered (1830) to the island of Mackinac to be the only permanent priest in the upper Great Lake...

Sphalerite, mineral composed of zinc sulfide, usually containing some iron and a little cadmium. It occurs in crystals of the isometric system but more generally in cleavable, compact masses. ...

Newberry, Walter Loomis, 1804–68, American merchant and banker, b. East Windsor (in the section now South Windsor), Conn. In 1822 he entered the shipping business with his brother Oliver in Bu...

Lead, metallic chemical element; symbol Pb [Lat. plumbum]; at. no. 82; at. wt. 207.2; m.p. 327.502°C; b.p. about 1,740°C; sp. gr. 11.35 at 20°C; valence +2 or +4. One of the oldest metals used...

Crystal, a solid body bounded by natural plane faces that are the external expression of a regular internal arrangement of constituent atoms, molecules, or ions. The formation of a crystal by ...

Silver, metallic chemical element; symbol Ag [Lat. argentum]; at. no. 47; at. wt. 107.8682; m.p. 961.93°C; b.p. 2,212°C; sp. gr. 10.5 at 20°C; valence +1 or +2. Pure silver is nearly white, lu...