SALT. 197 



rock salt. This last is dug out of the earth like 

 other minerals ; the salt is procured from springs 

 and from sea water, by allowing the liquid to 

 evaporate. The United States is rich in salt- 

 springs, and they are also plentifully found in 

 many other countries. 



These are thy glorious works, Parent of Good, 

 Almighty ! thine this universal frame, 

 Thus wondrous fair ! and loudly these proclaim 

 Thy goodness. 



Questions. 



What are mountains and hills I 



What kind of rock forms some of the highest mountains ? 



Why is granite so useful in road making ? 



From whence has the granite been chiefly brought, with 

 which the streets of London are paved ? 



In which counties does lime stone form ranges of hills? 



Of what does this kind of rock seem principally composed ? 



To what uses is lime-stone applied, and how is it prepared] 



What is marble ? 



What are the most useful building stones ? 



What name is given to that part of England where 

 earthenware is principally made I 



In what states is common salt found 1 



How is it procured from sea water and from salt springs ? 



