154 CORRELATION OF THE PHYSICAL FORCES, 



light from a magnet, but what more need I show 

 you to prove the universal correlation of the 

 physical forces of matter, and their mutual con- 

 version one into another ? 



And now let us give place as juveniles to the 

 respect we owe to our elders ; and for a time let 

 me address myself to those of our seniors who 

 have honoured me with their presence during 

 these lectures. I wish to claim this moment 

 for the purpose of tendering our thanks to them, 

 and my thanks to you all for the way in which 

 you have borne the inconvenience tjiat I at 

 first subjected you to. I hope that the insight 

 which you have here gained into some of the 

 laws by which the universe is governed, may be 

 the occasion of some amongst you turning your 

 attention to these subjects; for what study is 

 there more fitted to the mind of man than that 

 of the physical sciences? And what is there 

 more capable of giving him an insight into the 

 actions of those laws, a knowledge of which 

 gives interest to the most trifling phenomenon 

 of nature, and makes the observing student find 



" tongues in trees, books in the running brooks, 



Sermons in stones, and good in everything " ? 



