LECTURE III. 151 



possess SO little natural sensibility, that 

 notwithstanding the violent pressure and 

 rapid motion they undergo, we are scarcely 

 sensible of the parts, at which such motion 

 is effected. 



I feel that some apology is requisite for 

 detaining your attention so long upon cir- 

 cumstances familiarly known, but not in 

 general sufficiently contemplated, which I 

 have been induced to do, because we are 

 far better judges of the causes requiring 

 mechanism, and the effects resulting from 

 it, than we are of the vital processes. 

 Therefore, from this least interesting part 

 of anatomy, we derive the strongest con- 

 viction of there being design and con- 

 trivance in the construction of animals. 

 Equal evidences of design and contrivance, 

 and of adaptation of means to ends may 

 be observed in the construction of the 

 frame-work, as I may call it, of other ani- 

 mals, as in that of man, which subject 

 seems to me very happily displayed in Pro- 

 fessor Cuvier's lectures. Yet there are 

 some who presume to find fault with the 



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