16 



Gall and Spurzheim assert that this pro- 

 pensity is the result of a peculiar organ- 

 ization in a portion of the brain, the exu- 

 berance of which is rendered evident even 

 by the exterior form of the head. They 

 say that some individuals of the human 

 race have a strong propensity to construct 

 things and an aptitude for such employ- 

 ment, whilst others have no disposition or 

 talent of this kind. They assert that both 

 in man and animals, those individuals who 

 have this constructive propensity have also 

 a corresponding form ^f head which is 

 wanting in others who do not possess it. 

 They make a similar assertion with respect 

 to all the other instincts which we are to 

 consider, but it will not be necessary for 

 me to repeat it. Now here I may observe 

 upon the supposition of Gall and Spurz- 

 heim's views of these subjects being correct, 

 that the occasional, perhaps annual recur- 

 rence of this propensity, renders it probable 



