CONTENTS. "^" 



CHAPTER VII. 



COMCLUSION. 



Summary of the part which worms havo played in the 

 history of the world — Their aid in the disintegra- 

 tion of rocks — In the denudation of the land — Iii 

 the preservation of ancient remains — In the pre- 

 paration of the soil for the growth of plants — 

 Mental powt^rs of worms — Conclusion . o0o-313 



Ikdsx 315-326 



