MAGNETIZATION" AND MAGNETIC CHANGE OF LENGTH. \f 



In Swedish iron, tungsten steel and nickel, the magnetizations 

 before and after the cooling coincide with each other for all 

 fields. In cast and annealed cobalts, there is a considerable re- 

 sidual change of the magnetic condition. 



(à) IVIagnetization of Nickel Steels. 



The intensities of magnetization at the temperatures of the 

 room and of liquid air are given in Table II. 



TABLE IL 



NICKEL STEEL 70.32?^. 



