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CHAPTER VIII. 



CONCLUSION. 



DEGREE OF PERFECTION IN INDUSTRY INDEPENDENT OF 

 ZOOLOGICAL SUPERIORITY— MENTAL FACULTIES OF THE 

 LOWER ANIMALS OF LIKE NATURE TO MAN's. 



Degree of perfection in industry independent of 

 zoological superiority. — As the result of our study we 

 see the fundamental industries of Man dispersed 

 throughout the animal kingdom, though not, indeed, 

 all of them, nor the more subtle, which were only 

 born yesterday. We may remark the extent to which 

 intellectual manifestations of this sort are inde- 

 pendent of the more or less elevated rank assigned to 

 species in zoological classification. The latter, as it 

 should be, brings together or separates beings accord- 

 ing to their physical character. But intelligence does 

 not depend on the whole body; its superior or inferior 

 development is related to a certain corresponding 

 complexity in the surface, volume, and histologic 

 structure of the nervous centres. 



It happens with the cerebral as with the other 

 functions. An animal's superiority is not exhibited 

 in all his organs nor in all his qualities; it results from 



