THE EVOLUTION OF A MOTHER 367 



charge along one or many of the transit fibres. 

 Now in every new connection of ideas multi- 

 tudes of cells and even multitudes of groups 

 of cells may be concerned, so that should it i^^ 

 happen that a combination of these precise centres ^ 

 had never been made before, it is obvious that no 

 routes could possibly exist between them, and these 

 must then and there be prospected. Each new 

 Thought is therefore a pioneer, a road-maker, or 

 road-chooser, through the brain ; and the exhaust- 

 less possibilities of continuous development may be 

 judged from the endlessness of the possible com- 

 binations. In the oldest and most-used brain there 

 must always remain vast territories still to be 

 explored, and, as it were, civilized ; and in all men 

 multitudes of possible connections continue to the 

 last unrealized. When it is remembered, indeed, 

 that the brain itself is very large, the largest mass 

 of nerve-matter in the organic world ; when it is 

 further realized that each of the cells of which it 

 is built up measures only one ten-thousandth of 

 an inch in diameter, that the transit fibres which 

 connect them are of altogether unimaginable fine- 

 ness, the limitlessness of the powers of Thought 

 and the inconceivable complexity of these processes 

 will begin to be understood. 



Now it is owing to the necessity for having a 



