OX THE TIME-LAG IX THE MAGNETISATION OP IRON. 



303 



Discussion of the Preceding Experiments. 



The figures representing the result of the above experiments 

 show that when the field is very weak, everything goes on smoothly. 

 But when the field strength gets somewhat greater, there appears to 

 be an enormous growth of magnetisation during a very short time 

 just after "make," and further this initial growth increases with the 

 load. Two possible explanations may be given of this phenomenon. 



(1°) It may be not the proper growth 1 in magnetisation, but 



1 This term is substituted for creeping, because the process is not slow here 



