So for many miles about, Vesuvius has been making earth. Her ashes lie hundreds of feet deep. Men dig wells and still find only material that has been thrown out of the volcano. When this matter grows old and lies under the sun and rain it turns to good soil. The acids of water and air and plants eat into it. Rain wears it away. Plant roots crack the rocks open. The top layer becomes powdered and rotted and mixed with vegetable loam and is fertile soil. So the country all around the volcano is a rich garden. Tomatoes, melons, grapes, olives, figs, cover the land. But Vesuvius alone has not made all this ground. She is in a nest of volcanoes. They have all been at work like her, spouting ashes and pumice and rocks and lava. Ten miles away is a wide stretch of country where there are more than a dozen old craters. Twenty miles out in the blue bay a volcano stands up out of the water. A hundred miles south is a group of small volcanic islands. They have hot springs. One has a volcano that spouts every five or six minutes. At night it is like a lighthouse for sailors. One of these Islands is only two thousand years old. The men of Pompeii saw it pushed up out of the sea during an earthquake. A little farther south is Mt. Aetna in Sicily. It is a greater mountain than Vesuvius and has done more work than she has done. So all the southern part of Italy seems to be the home of volcanoes and earthquakes. There are many other such places scattered over the world--Iceland, Mexico, South America, Japan, the Sandwich Islands. Here the same terrible play is going on--thunder, clouds, falling ashes, scalding rain, flowing lava. The earth is being turned inside out, and men are learning what she is made of. [ILLUSTRATION: _Bronze lampholder_: Five lamps hung from the branches of this bronze tree. It was twenty inches high.] POMPEII TO-DAY Years came and went and changed the world. The old gods died, and the new religion of Christ grew strong. The old temples fell into ruins, and new churches were built in their places. Instead of the old Roman in his white toga came merchants in crimson velvet and knights in steel armor and gentlemen in ruffles and modern men in plain clothes. Among all these changes, Pompeii was almost forgotten. But after a long while people began to be much interested in ancient Italy. They read old Roman books, and learned of her wonderful cities. They began to dig here and there and find beautiful statues and vases and jewels. They read the story of Pompeii in an old Roman book--a whole city suddenly buried just as her people had left her! “There we should find treasures!” they said. “We should see houses, temples, shops, streets, as they were seventeen hundred years ago. We should find them full of statues and rich things. Perhaps we should find some of the people who lived in ancient days. But where to dig?”