40 flature's /llMracles, 



advent of electricity in large volume, such as 

 is produced by the power of Niagara Palls. 

 It is curious to note that a substance so useful 

 and so harmless as common salt should be 

 made out of two such refractory and danger- 

 ous elements as chlorine and sodium. Both 

 of these elements, standing by themselves, 

 seem to be out of harmony with nature, but 

 when combined there are few substances that 

 serve a better purpose. 



These great salt beds that are found to exist 

 in England and America and other parts of 

 the world were undoubtedly deposited from the 

 water of the ocean at some stage in the forma- 

 tion of the earth's crust. It is well known 

 that sea water is exceedingly saline; 300 gal- 

 lons of sea water will produce a bushel of salt. 

 Undoubtedly beds of salt are also formed by 

 inland lakes, such as the Great Salt Lake in 

 Utah. Only about 2.7 per cent, of ocean water 

 is salt, while the water of the Great Salt Lake 

 of Utah contains about 17 per cent. When 

 there is so much salt in water that it is called 

 a saturated solution, salt crystals will form 

 and drop to the bottom, which process will in 

 time build up under a large body of salt water 

 a great bed of rock salt. 



The water in all rivers and springs contains 

 salt to a certain degree, and where it runs into 

 a basin like that of a lake with no outlet, 

 through the process of evaporation pure water 



