FISHES AND FISHING. 367 



This apparatus is far superior to any I have ever 

 seen, and can be adapted to most machines for apply 

 ing electro-magnetism, or indeed for frictional elec 

 tricity in some of its modifications. 



There are machines of a powerful character which 

 give an interrupted current, used at some of our hos 

 pitals to overcome the effect of narcotics. 



All general practitioners should have a proper 

 machine and apparatus for applying electro-magnetism, 

 particularly those residing near rivers, lakes, or on 

 the sea coast. The expense is trifling, and the utility 

 very great. 



I will with pleasure show any professional gentle 

 man, or manufacturer of these machines niy improve 

 ments. 



