1890.] on Magnetic Phenomena. 55 



piece of steel, and it will continue to be magnetic until it is once 

 more made red hot. This is one of the most remarkable discoveries 

 in magnetism that has been made for many years. It revives the 

 question first suggested by Faraday — whether any metal whatever 

 may not possibly be rendered magnetisable by exposure to a 

 sufficiently low temperature.* 



[S. B.] 



t 



* The discourse was illustrated by about twenty experiments. 



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