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Wonders Of Creation A Descriptive Account Of Volcanoes And Thei
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.--Volc...