192 



Tranaactions. — Miscellaneous. 



Curve 3 shows the corresponding relations for the steel- 

 wire ring as curve 2 for the soft iron. Curve 6 shows the 

 hysteresis curves for the slow and rapid cycles for soft steel. 

 Curves 4 and 7 show the I'elations for a soft-iron ring when 

 the maximum magnetizing forces is much lower than for the 

 first two sets of curves. The value of H in this case was just 

 sufficient to carry the magnetism of the iron up the steep part 

 of the hysteresis curve. 



Table for Cueve 5. 



