(Encyclopedia) Glass, Montague Marsden, 1877–1934, American humorist and playwright, b. England, educated at the College of the City of New York and at New York Univ. He won fame for… (Encyclopedia) glass, hard substance, usually brittle and transparent, composed chiefly of silicates and an alkali fused at high temperature. Composition and Properties of… (Encyclopedia) Gloucester City, city (1990 pop. 12,649), Camden co., SW N.J., on the Delaware River, a suburb adjoining Camden and opposite Philadelphia; site of Fort Nassau (built 1623… (Encyclopedia) city, densely populated urban center, larger than a village or a town, whose inhabitants are engaged primarily in commerce and industry. In the United States a city is… (Encyclopedia) soluble glass: see water glass . (Encyclopedia) glass fiber: see fiberglass . (Encyclopedia) opera glass: see binocular . (Encyclopedia) magnifying glass: see microscope . (Encyclopedia) field glass: see binocular . (Encyclopedia) glass harmonica: see harmonica 2.