LAWS AND WARBEN. — HYSTERESIS. 497 



TABLE I. 

 First Heating : Ascenbing Curve. 

 See Figure 4. 

 W^ = liysteresis loss in specimen. 



The specimen lost its magnetic properties so rapidly that furtliei 

 measurements could not be taken on the ascending curve. 



TABLE L — Descending. 



VOL. XXX. (n. s. xxii.) 32 



