During the short dawn and the twilight the sky shone and reflected a thousand bright colors more wonderful than the children had ever seen even in the Libyan desert. The clouds hanging down nearest the water were cherry-colored, and the higher regions, better lighted, looked like seas of purple and gold, and the small, puffy clouds shone alternately like rubies, amethysts, and opals. At night, in the intervals between showers, the moon converted the dewdrops hanging on the leaves of the acacias and mimosas into diamonds, and the tropical light shone much more brilliantly through the fresh, transparent air than at other seasons of the year. Under the waterfall, in the swamps formed by the stream, the croaking of frogs and the melancholy concert of toads rang out, and the fireflies, like sh

