CH. XL] TWO OBJECTIONS CONSIDERED. 49 



thinkers. But enough has already been explained to draw 

 forth the undeniable Fact of Derivation from the region of 

 mystery in which it was formerly half-hidden, and thus to 

 place the Theory of Derivation upon a thoroughly scientific 

 basis. In expounding the way in which this has been dono, 

 we have obtained several useful conceptions, which will nut 

 tail to do us good service in future chapters. 



VOL. n. 



