CHAPTER XV
ARTIFICIAL LIGHTING
141. We seldom consider what life would be without our wonderful
methods of illumination which turn night into day, and prolong the
hours of work and pleasure. Yet it was not until the nineteenth
century that the marvelous change was made from the short-lived candle
to the more enduring oil lamp. Before the coming of the lamp, even in
large cities like Paris, the only artificial light to guide the
belated traveler at night was the candle required to be kept burning
in an occasional window.
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