Popular Science Monthly 



181 



"In the deep recesses behind the falling sheet of water at Niagara," says Prof. Norton in his 

 article, "a gigantic system of scaffolds would be erected. These would serve as the supports 

 of a series of over-shot wheels or endless-chain bucket wheels. By careful disposition 

 a considerable fraction of the available power — possibly thirty to forty per cent. — could 

 be utilized without revealing any portion of the mechanism to the eye of the beholder" 



