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