500 | Olituary. 
r 
Magnetism, the student will not willingly pass over his papers 
olecular Vortices, in vols. xxi and xxii of the Philosophical 
, or his Dynamical Theory of the Electromagnetic Field, 
in the Proceedings of the Royal Society in 1864. Such luminous 
imagination together with originality of conception is shown in. 
no less in his own inability to follow them out to their conclusion 
than in his certainty that the guide we have lost could have knit 
them together into a magnificent induction if only the full term 
of life had been allotted to him. : 
