CHAPTER I.

Volcanoes in general—Origin of the Name—General
Aspect—Crater—Cone—Subordinate Cones and Craters—Peak of
Teneriffe—Lava-Streams—Cascades and Jets of Lava—Variations
in its Consistency—Pumice—Different Sorts of
Lava—Obsidian—Olivine—Sulphur—Dust, Ashes, &c.—Volcanic
Silk—Volcanic Islands—Volcanic Fishes—Hot Water, Mud,
Vapours, &c.—Volcanic Storm—Explosions—Number of
Volcanoes—King of the Volcanoes—Artificial Volcano