OF CRYSTALS BY THE POLES OF A MAGNET. 375 



Can we admit that the new repulsive force is a modification 

 of diamagnetism, produced by the form of the ultimate particles 

 of matter ? It would then be remarkable, that this force is so 

 strong, that, when the crystal is suspended in a certain position, 

 it is capable of overcoming the originally much stronger mag- 

 netic or diamagnetic directive force, when the poles of the mag- 

 net are further removed apart. The experiments proved that 

 the new force diminishes less in proportion to the increase of 

 distance than this directive force. 



At all events the forms of the ultimate particles of matter 

 and the magnetic forces stand in mutual relation, which has 

 brought us to the remarkable result, that we can determine 

 crystalline forms by a magnet. Moreover, this renders the 

 existence of a relation between those forces which are in action 

 during crystallization and the magnetic forces extremely pro- 

 bable. The most important point of view however is evidently 

 this, that the directions, the repulsion of which results *from 

 the new exertion of force, are the very ones which stand in 

 peculiar and exclusive relation to light, in which it does not suf- 

 fer double refraction when transmitted through it. This relation 

 will not remain Ions; thus isolated. 



