318 TBE BIOCOSMOS PARTICULARIZED. 



its own Directive System, and of all the other 

 Systems of bodily organs. But the Brain 

 too is still further organized of System with- 

 in System, refining itself more and more to- 

 ward the Psyche, which is the final creative 

 point of Assimilation. Still its bi-lateral sym- 

 metry is ever present, the inerasable stamp of 

 Nature the outwardly separated parts be- 

 coming one. 



This separation is likewise indicated in the 

 two kinds of matter of which the Brain is 

 composed the gray and white, or the outer 

 and inner, which, however, coalesce in a kind 

 of medium. The gray matter is made up of 

 nerve cells mostly, while the white matter 

 which underlies the gray is constituted chiefly 

 of nerve fibres, which grow out of the nerve 

 cells. 



First in order, the Cerebrum, co-ordinates 

 all the manifold lesser co-ordinations with 

 supreme authority, with Will. It directs the 

 rest of the directive organs it is the direction 

 of direction, and hence ultimately it is the self- 

 directed, and imparts that characteristic to 

 the whole organism. In the Cerebrum is the 

 supreme turning-point from the sensory to 

 the motor power, from inwards to outwards, 

 from afferent to efferent nerves. These are 

 composed of two distinct kinds of cells, to 

 which is added the third kind called associa- 



