2. Sir Charles Lyell, the great English geologist, gives us the process by which sunlight was let in on the earth during the carboniferous age. This age corresponds to the fourth day of Moses. The dark band of gases intercepted the clear rays of sunlight, so that a somber hue of gray covered the earth, as in twilight. Vegetation must slowly do the work of depositing these gases, until diminished so that fire, or flame, could be supported. Such was the resinous and oily nature of all vegetation of that period, that a stroke of lightning might set the world on fire, to burn for six months or a year. Some of the carbonated growth of the forests would be hidden away beyond the reach of flame. In this condition it would ripen into coal. But enough carbonic acid would escape, to intercept the clear rays of the sun, and another period of deposit would set in. In the Nova Scotia coal mines, alone, he had noticed one hundred of these burnings, implying a long period of deposit between each. It is thus the long ages struggled, to enable the sun to kiss the vegetation into bloom. The widely scattered coal beds of this period show that the whole earth was covered with a tropical forest. Large veins of this coal are found in Greenland, Nova Zembla Island, Tasmania, and the Melville Islands. 3. We have had subsequent periods of deposits of carbon in forests that produced coal. But the coal formed since that age is generally soft. One short coal period occurred this side the great upheavals of mountains. This coal is found on the Pacific Coast, and yields only forty-four per cent. carbon. The best coal had its origin before the flowers. In Moses’ prophetic vision of the work of the sun, he grasped certain points in the future of astronomy. 4. He noticed the use an enlightened civilization would make of the motions of the heavens. He noticed the Zodiac divided into signs, and time measured by three clocks of nature, called “days, years, and seasons.” The season clock is by the precession of the equinoxes, consuming 25,000 years in a circle. Michael, the archangel, used this term in explanation of the “long time” that would elapse before the final end. With the clear sunlight, the climax of vegetation was reached. Two inorganic mornings and two vegetable mornings have been noted; two animal mornings remain to finish the work of God with matter. “And the evening and the morning were the fourth day.” Section 5. The Work of the Fifth Day.