Electromagnetic Stress. 



265 



Intensity of 



Induction. 



Square root of 



Calculated value 



Magnetizatiou. 



B. C.G.S. 



number of grams. 



of square root of 



I. CG-.S. 





supported. 



Tractive Force. 



493 



6198 



52-10 



520!) 



551 



6929 



5905 



5840 



646 



8122 



68-61 



68-55 



853 



10726 



90-86 



9059 



996 



12517 



10500 



105 60 



1163 



14635 



12230 



123 50 



1291 



16261 



13680 



13730 



1346 



16975 



14260 



143-20 



1400 



17690 



148-7 



149-30 



1463 



18545 



155-8 



15650 



1550 



19729 



1642 



166-60 



1585 



20234 



168*4 



170-80 



Fig. 2. — Soft iron Ellipsoid of Revolution cut in equatorial plane and interface 

 polished. Area of surface of contact=l-767 square centim. 



rH (M C5 



Induction, B. C.G.S. 



