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CONTENTS.
xi
—The treasures of the earth—Gold, silver, and iron—The gnome of the coal-mines—Use of coal—Varieties of coalpp. 255—276
Division of the universe between Jupiter, Neptune, and Pluto—Pluto's share—Cerberus—The river Styx—Charon the ferryman—The Acheron and the other rivers of the Infernum—Powers of Lethe—Migration of souls—Pluto and his court—Plutus—The fatal sisters—The three judges—The furies—Tartarus, and its inhabitants—Elysian fields—Pluto in search of a wife—Proserpine—Ceres—Intervention of Jupiter—Danger of eating pomegranate seeds—A new species of owl—Geological view of Pluto's kingdom—The realm of fire—How the earth and the other planets were formed—Internal condition of the earth—The earth's crust—Density of the crust and interior of the earth—Cordier's thermometrical theory of volcanoes and earthquakes—Volcanoes—Craters of eruption and elevation—Mount Vesuvius—Etna—Jorullo—Matters thrown out from volcanic craters—Mud volcanoes—Aqueous lava—Earthquakes—Vertical, horizontal, and circular movements—Earthquake of 1755—Elevation and subsidence of land—Submarine eruptions—Sabrina Island—Graham Island—Extinct volcanoespp. 277—307
The story of Aladdin—The lamp of science—Genii of the lamp—Steam—Miracles wrought by steam—Steam-power—The Leviathan—Construction—Dimensions—Mode of propulsion—Passenger-arrangements—Britannia Tubular Bridge—Stephenson—An impossible task—The strength of a beam—Monster rams—Lifting the tubes—Aerial galleries—An emblem explained—Conclusionpp. 309—338
