12 



AKT. 12.- K. HONDA. S. SHIMIZU, AXD S. KUSAKABE 



the results of previous experimenters. The largest deflections for 

 soft iron and wolfram steel amounted to adout 9 cm with a scale at a 

 distance of 2.(5 meters for a field of 500 C.G.S. units. 



The change of depressi<3n corresponding to different headings in 

 soft iron is given in the following table and graphically shown in 

 Fig. 3. 



In the above table, the change of depression o^s is taken positive 

 when it indicates an increase of elasticity and taken neo-ative, when it 

 indicates a decrease. H is the effective field, and T the suspended 

 weight. It is to be observed that owing to the weight of the bar 

 itself, the depression is caased by magnetization, when there is no 

 suspended weight. 



The general course of the curves in Fis". 3 resembles that of 

 magnetization. In weak fields, however, we notice a minute decrease 



