MAGNETIZATION AND MAGNETIC CHANGE OF LENGTH. 



41 



if there was nothing of special importance to be gained by heating 

 them above that temperature. 



(a) IVIagnetization of ferromagnetic metals. 



The ovoids were first cooled in liquid air ; the observations at 

 ordinary and then at higher temperatures were taken ; the results 

 are given ia Table X. 



^=7i4°C 



TABLE X. 

 SWEDISH IRON. 



^=736°C 



^=757°C 



^=76i°C 



H 



0.13 

 0.26 

 0.50 



1-39 

 2.48 

 22.46 

 258.6 



377 



49 

 115 

 338 

 533 

 597 

 744 

 829 



834 



H 



0.13 

 0.79 

 18.42 

 115. 6 

 258.0 

 398 



I 



H 



40 

 220 

 373 

 493 

 542 

 561 



0.05 

 3-29 

 2939 

 125.8 



305 

 425 



I 



50 

 121 



166 

 211 

 241 

 250 



H 



8.1 



75-5 

 188.9 



n o ^ 



437 



I 



11.8 

 39-0 

 64.5 



85-3 

 97.6 



