PKEFACE. V 



mer with presenting, the latter with having them presented, 

 under some certain form, but to both, when once endeared 

 by awakened interest, they are ever present, and for ever 

 assuming new aspects to engage thought and kindle affection 

 adoration. Completed works on natural subjects? There 

 are no such things ! The most scientific of them is but the 

 commencement of " a story without an end ;" the least so 

 (this among them) is but an invocation to begin and read it I 



