411 
1907-8.] Heusler’s Magnetic Alloy. 
heating circuit was then broken, the specimen allowed to return to room 
temperature, and a new I-H curve obtained. This procedure was repeated 
several times. 
II. SPECIMEN AFTER QUENCHING AT 750° C. 
I K. SPECIMEN IN LIQUID AIR AFTER QUENCHING AT 750° C. 
III. SPECIMEN AFTER QUENCHING TWICE AT 750° C 
III'. SPECIMEN IN LIQUID AIR AFTER QUENCHING TWICE AT 750° C- 
Diagbam Y. 
Curve I. shows the magnetic condition of the specimen prior to heating, 
Curve II. its condition after one heating, Curve III. its condition after two 
