268 THE MOLECULAR PROCESS IN MAGNETIC INDUCTION. 



Clerk Maxwell threw out the hint that many of the irreversible proc- 

 esses of physics are due to the breaking up and re-construction of 

 molecular groups. The models help us to realize Maxwell's notion, 

 and in studying them to-night, I think we may claim to have been 

 going a step or two forward where that great leader i^ointed the way. 



