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A Century of Progress %u2022 Vintage PostcardsThe Hall of Science Illuminated, 607Possibly the most startling thing about the World%u2019s fair is its lighting effects. This lighting is mostly that of rare-gas tubes. You see it in blues, greens, reds and yellows. Concealed bulbs are also used and tremendous spotlights are playing their beams in all directions.Hall of Science at Night, 810A new kind of illumination has come, and the Hall of Science makes use of the largest amount of gaseous tubes ever used on any one surface. Mingling with the throngs at night, you stand in the greatest flood of colored light that any equal area, or any city of the world, has ever produced.Arena Series
