Container glass Container glass Container glass is a type of glass for the production of glass containers, such as bottles, jars, drinkware, and bowls. Container glass stands in contrast to "flat glass" (used for windows, glass doors, transparent walls, windshields) and "glass fiber" (used for thermal insulation, in fiberglass composites, and optical communication). Container glass has a lower magnesium oxide and sodium oxide content than flat glass, and a higher Silica, Calcium oxide, and Aluminum oxide content. Its higher content of water-insoluble oxides imparts slightly higher chemical durability against water, which is required for storage of beverages and food. Most container glass
Hutchinson Family Singers an important component of all American popular music. Minstrel show troupes compared themselves to the Hutchinsons. In 1844, the Congo Minstrels advertised that "their songs are sung in Harmony in the style of the Hutchinson Family." Other minstrels parodied the group. The Harmoneon Family Singers (later the Boston Harmoneons) wore powdered wigs and faces and called themselves the Albino Minstrels or the Albino Family in what was supposed to be a blackface show. In 1845, the family toured Great Britain. Meanwhile, Caleb, Joshua, Rhoda, and Zephaniah Hutchinson toured the United States under the name Home Branch of the Hutchinson Family.