502 A New Model of Ferromagnetic Induction. 



Though in these models the turning part has, for the sake 

 of simplicity, been represented by a single coil or a single 

 magnet, it will be obvious that in developing the theory here 

 outlined the Weber element of a ferromagnetic atom may 

 be regarded as possibly comprising a complex group of 

 electron orbits, capable of turning as a whole within the 

 outer system, or even more than one such group. Reverting 

 to the model of fig. 1, where there is an octet of fixed 

 magnets, namely the four that are shown in the sketch and 

 other four in a plane perpendicular to that of the paper, the 

 Weber element might itself have eight magnetic poles, placed 

 at the corners of a cube and capable of turning as a rigid 

 system about the centre. Such a model is conveniently 



Fiir. 6. 





made by using, for the part that turns, a cubic steel boss with 

 projecting magnets screwed into its eight comers in the 

 direction of the diagonals of the cube, and magnetized so 

 that four of the projecting poles have one polarity and the 

 four opposite poles have the other polarity. In fig. 6 the 

 eight fixed magnets are held in a skeleton cube of brass 

 rods, and the octet which forms the Weber element is, 

 for the sake of clearness, removed from its place on the pivot 

 and shown separately. When the model is arranged 

 in this form it is practicable to reproduce conditions of 

 extreme magnetic aeolotropy. Thus we may advance one 

 pair of opposite fixed magnets (in the outer shell) until 



