S t-a l- 
1912 - 13 .] Sensitive Magnetic State induced in Various Ways. 247 
Medium Carbon Steel 
H=8 
Percentage Sen sit nee State ctae to 
successive r/ses of temperature 
of a tout SO °C 
/oo° 
TEMP 
300° 
400' 
SO O' 
600°C 
Medium Carbon Steel 
H=8 
Percentage Sensitive State c/ue to 
successive r/ses of temperature 
of about tOO°C. 
TEMP 
300 c 
400° 
500° 
60 OX 
Hard Steel 
H -/0 
Percentage Sensitive State due to 
successive rises of temperature 
of about SO°C. 
I L 
TEMP 
200 ' 
300° 
Fig. 1. 
400 ‘ 
SOO c 
600° C 
