188 PHILOSOPHICAL NOTES ON 



Without elaborate illustrations it is difficult to convince the 

 reader of what one puts forth, and that there is no real difference 

 between the stem and the root, or the plumule and the radicle. 

 The reader requires to be saved the trouble of thinking and recall- 

 ing to his mind the facts otherwise than by simple words. He 

 may be com-incible, but may not have the time or the patience to 

 follow in thought what is written without the help of illustrations. 



