10 BIOLOGY. [BOOK i. 



inorganic bodies. Is there sufficient reason, however, for distin- 

 guishing between an inorganic world and an organic world? 

 What are the dissimilar qualities of these two grand groups? 

 This is what we propose to examine in the following 

 chapters. 



[Note. When in this chapter atoms are spoken of as 

 full, it is in the sense of a plenum excluding a vacuum. 

 TRANSLATOR.] 



