MODERN SCIENCE. 265 



power a fraction derived from the cataract will turn the 

 machinery of Buffalo and some other neighbouring towns. 

 The Niagara Falls are capable of producing 15 million 

 horse-power. The Rhone, the Falls of the Rhine have 

 likewise been utilised either to generate electric light or 

 drive machinery at a great distance, and other rivers will 

 be used in the same way. 



Soon, no doubt, the tidal power of the sea will be 

 pressed into service and turned to similar advantage. The 

 time is probably not far distant when sunlight and heat 

 will be stored directly, and turned into mechanical energy. 

 Modern science has brought the solution of every physical 

 problem within the compass of possibility. 



