Volcanoes Earthquakes Lava. 1 63 



A Volcano and other Mountains. 



CHAPTER XIV. 



MOUNTAINS, VOLCANOES, ETC. 



i. Here is a volcano, which is a burning 

 mountain. Sometimes volcanoes throw out red- 

 hot stones, sometimes melted stones called lava, 

 sometimes smoke, and sometimes ashes. Most 

 of them are along the Pacific coasts of Asia 

 and South America. There are more than a 

 thousand volcanoes in the world. They are 

 useful in preventing earthquakes ; in supplying 

 us with sulphur, with some fine kinds of lava, 

 from which bracelets and breast-pins are made, 

 and with pumice-stone, which is the froth that 

 floats sometimes on streams of lava. 



