100 SPECIES NOT 



and are still smaller in the herbivora. 



Now Van der Kolk clearly makes out that in 

 addition to the known function of presiding over 

 articulation and speech, these bodies especially are 

 connected with those muscles of the face by which 

 the passions are expressed. Thus in the beasts 

 of prey these bodies are highly developed, and 

 the expression of the passions is much stronger 

 in the carnivora than in the herbivora, as shewn 

 by Bell. 



The muscles which produce the snarling ex- 

 pression of a dog or wolf, are wanting in the 

 herbivora, in which as well as the ass, which has 

 very little expression, the Corpora oUvaria, arc 

 small. In the seal, whose skin is so unyielding, 

 that no expressive movements take place, the 

 superior corpora olivaria arc entirely iranthiy. 



Now I should like to be informed by any of 

 Mr. Darwin's disciples how he accounts for this 

 difference in an important structure, even in 

 animals closely allied, unless by special adapta- 

 tion in a special creation? It would be perfect 

 nonsense to argue that nervous matter, which 

 presides over certain movements, could be altered 

 by use, because we have seen that it in fact 

 causes these movements. Equally absurd would 

 be the argument that they could be produced 

 by any correlation of growth. In fact it is ut- 

 terly impossible that the same form could ever 

 vary so as to exhibit permanent alterations of 

 this kind without special creation. To suppose 

 that natural selection could do it, is to indulge 



