Keynote of lighting scheme - life and gaiety, without garishness. Lighting kept subordinate to architecture; walks shaded to throw emphasis on brilliantly lighted facades and to bring out architecture, landscape and flowers. Same lighting principle used throughout; but effect in different courts radically different. Area of surface illuminated, 8,000,000 square feet; 2,000,000 of wall surface, and 6,000,000 of ground surface. Number of searchlights used: 373 arc searchlights, in diameter from 13 to 36 inches; 450 small searchlights, called the "Mosquito Fleet"; 250 incandescent projectors for flag lighting. Fillmore Street Entrance South facade of entrance, outline illumination, with bare electric lights following outlines of architecture; used elsewhere only in Zone. Inside Fillmore Street entrance, Zone to right; brilliant lighting, outline illumination, more or less refined; exaggerated effects prohibited. Zone, element of festivity in arches crossing street at short intervals, ribbons of turkey red suspended from each lamp give warmth and action. Contrast of Zone lights with illumination in other parts of Exposition. To left, Service Building, administration offices; coloring, Pinks and blue; ceiling of porch, intense blue, deepest used on grounds. Corner of Avenue of Palms and Avenue of Progress: lights banners, towers, facades of buildings, walks, flood lights, spots of light and color. Fairy-like effect of Avenue of Palms: towers look luminous; in early evening Italian Towers red hot, throbbing; glow stronger than Tower of Jewels; later, Tower of Jewels most brilliant spot on avenue. Tower illumination, floods of light from searchlights; white light creates shadows, in turn illuminated by concealed colored light on various stages, on Tower of Jewels and Italian Towers. Single light standards along Avenue of Palms, light yellow, dull points of light; contrast with white pearly light on tops of booths. Avenue of Progress Along Avenue of Progress: fine flag display; no direct sources of light; banners; beautiful scenes made by planting against walls and quality of green on lawn; daylight effect from luminous arcs which produce whitest artificial light in use. Gas lights on tops of booths, emergency lights if electricity fails. Banners and heraldic shields, designed by Ryan; banners, of early explorers and pioneers, heraldic shields related to history of California, Mexico, Central America, and Pacific Ocean. Purpose of banners: to form beautiful lines of color, to screen eyes from direct light source, to reflect light toward buildings, and to suggest history of court. Banners suspended, swung by wind, form moving spots of color. Roman gateway, Palace of Varied Industries: faint light through small arches above doorway; delicate green lattice or grill work in door.