NATURAL THEOLOGY. 



249 



animals ; nor have we much difference to remark 

 in their constitution, or much, however, which is 

 referable to mechanism. 



The superior segacity of animals which hunt 

 their prey, and which, consequently, depend for 

 their livelihood upon their nose, is well known in 

 its use ; but not at all known in the organization 

 which produces it. 



The external eai^s of beasts of prey, of lions, 

 tigers, wolves, have their trumpet-part, or con- 

 cavity, standing forward, to seize the sounds 

 which are before them — viz., the sounds of the 

 animals which they pursue or watch. The ears of 

 animals of flight are turned backward, to give 

 notice of the approach of their enemy from behind, 



mi 



