HEREDITY AND " ARRANGEMENT ' 1 39 



and female parents. This cell divides up into a 

 multitude of others. At first these are to all 

 appearances identical, but later they begin to 

 differentiate, at first into three classes and after- 

 wards into the multitude of different cells of which 

 the body is composed. Further, these groups of 

 cells become aggregated in appropriate groups, 

 cells of one kind uniting with cells of the same 

 kind and with no others. Here we have to do 

 with arrangement, consummately skilful arrange- 

 ment, an arrangement which practically never 

 fails, for, leaving aside the case of monstrosity, a 

 consideration of which would detain us too long, 

 not merely are the various cells all placed in their 

 proper positions, as we have seen, but their 

 aggregation, the individual, is so formed as to 

 belong to the proper compartment of that large 

 museum, the world the same compartment as 

 that occupied by his progenitors. Neither the 

 particulate nor the chemical theories help us here. 

 The mnemic would, but it has its initial and in- 

 superable difficulty, pointed out in another article 

 in this volume, that, as you must have an ex- 

 perience before you can remember it, it in no 

 way accounts for the first operation of arrange- 

 ment. As to the material explanations, particu- 

 late or chemical, they amount to something like 

 this : you have half a cart-load of bricks from 

 one yard and half a cart-load from another, and 

 when the bricks are dumped down in an appro- 

 priate place they form a little house, just like those 

 occupied by the managers of the brickyards. So 

 they may, but no one in his sense supposes that 



