align="right">127

XI The Light of the Future 143 XII Lighting the Streets 152 XIII Lighthouses 163 XIV Artificial Light in Warfare 178 XV Signaling 194 XVI The Cost of Light 208 XVII Light and Safety 225 XVIII The Cost of Living 238 XIX Artificial Light and Chemistry 256 XX Light and Health 269 XXI Modifying Artificial Light 284 XXII Spectacular Lighting 298 XXIII The Expressiveness of Light 310 XXIV Lighting the Home 325 XXV Lighting—A Fine Art? 341   Reading References 357   Index 359

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LIST OF ILLUSTRATIONS